Who really likes reading long, boring problem statements?
Lengthy statements can get super tiring. So, I picked out all the problems with short and easy-to-read statements and sorted them. Sharing this list for all the lazy coders out there who want to get straight to the good stuff!
So, here you go — following this awesome blog, here’s the List of Problems Having Short Statements, version II
The problems are sorted from shortest to longest statement.
Only the problem description was counted — the input/output part and samples were ignored.
1600
- 1985G - D-Function
- 1458A - Row GCD
- 1542C - Strange Function
- 1519D - Maximum Sum of Products
- 2085C - Serval and The Formula
- 1856C - To Become Max
- 1364C - Ehab and Prefix MEXs
- 1971F - Circle Perimeter
- 1753B - Factorial Divisibility
- 1603B - Moderate Modular Mode
- 1514C - Product 1 Modulo N
- 1771C - Hossam and Trainees
- 2125D - Segments Covering
- 1342C - Yet Another Counting Problem
- 1497C2 - k-LCM (hard version)
- 1165D - Almost All Divisors
- 1622C - Set or Decrease
- 1133F1 - Spanning Tree with Maximum Degree
- 1513C - Add One
- 1165E - Two Arrays and Sum of Functions
- 1511D - Min Cost String
- 1396A - Multiples of Length
- 1398C - Good Subarrays
- 1288C - Two Arrays
- 1857F - Sum and Product
- 2132D - From 1 to Infinity
- 1748C - Zero-Sum Prefixes
- 2094F - Trulimero Trulicina
- 1395C - Boboniu and Bit Operations
- 2082B - Floor or Ceil
- 1610C - Keshi Is Throwing a Party
- 1503A - Balance the Bits
- 1633D - Make Them Equal
- 1946C - Tree Cutting
- 1904D1 - Set To Max (Easy Version)
- 1305C - Kuroni and Impossible Calculation
- 1730B - Meeting on the Line
- 1680C - Binary String
- 1822E - Making Anti-Palindromes
- 1234D - Distinct Characters Queries
- 1968E - Cells Arrangement
- 1787C - Remove the Bracket
- 1671D - Insert a Progression
- 1907E - Good Triples
- 1677A - Tokitsukaze and Strange Inequality
- 2004D - Colored Portals
- 1423K - Lonely Numbers
- 1781C - Equal Frequencies
- 1363C - Game On Leaves
- 1775C - Interesting Sequence
- 1175C - Electrification
- 1486C1 - Guessing the Greatest (easy version)
- 1151B - Dima and a Bad XOR
- 1796C - Maximum Set
- 1140C - Playlist
- 2043C - Sums on Segments
- 1528A - Parsa's Humongous Tree
- 2117E - Lost Soul
- 1996E - Decode
- 1702E - Split Into Two Sets
- 1612D - X-Magic Pair
- 1373D - Maximum Sum on Even Positions
- 1840E - Character Blocking
- 1527C - Sequence Pair Weight
- 1213D2 - Equalizing by Division (hard version)
- 1707A - Doremy's IQ
- 1352G - Special Permutation
- 1766D - Lucky Chains
- 1920C - Partitioning the Array
- 2061D - Kevin and Numbers
- 1829G - Hits Different
- 1774D - Same Count One
- 1389B - Array Walk
- 1582D - Vupsen, Pupsen and 0
- 1526C2 - Potions (Hard Version)
- 1849C - Binary String Copying
- 2061C - Kevin and Puzzle
- 2129B - Stay or Mirror
- 1615C - Menorah
- 1184C1 - Heidi and the Turing Test (Easy)
- 2046B - Move Back at a Cost
- 1198B - Welfare State
- 1798D - Shocking Arrangement
- 1482C - Basic Diplomacy
- 1407C - Chocolate Bunny
- 2128D - Sum of LDS
- 1833E - Round Dance
- 1349A - Orac and LCM
- 1932E - Final Countdown
- 2018A - Cards Partition
- 1875D - Jellyfish and Mex
- 1623C - Balanced Stone Heaps
- 1481C - Fence Painting
- 1632C - Strange Test
- 1722E - Counting Rectangles
- 1196D2 - RGB Substring (hard version)
- 1797C - Li Hua and Chess
- 2034D - Darius' Wisdom
- 1188A1 - Add on a Tree
- 1779C - Least Prefix Sum
Bonus!! Not too short, not too long (1600)
- 1295C - Obtain The String
- 1806C - Sequence Master
- 1660D - Maximum Product Strikes Back
- 1811D - Umka and a Long Flight
- 1151D - Stas and the Queue at the Buffet
- 1469C - Building a Fence
- 2051E - Best Price
- 1537E1 - Erase and Extend (Easy Version)
- 2063C - Remove Exactly Two
- 1801A - The Very Beautiful Blanket
- 1530D - Secret Santa
- 1455D - Sequence and Swaps
- 1886C - Decreasing String
- 1658D1 - 388535 (Easy Version)
- 1334C - Circle of Monsters
- 1512E - Permutation by Sum
- 1217B - Zmei Gorynich
- 1687A - The Enchanted Forest
- 1539D - PriceFixed
- 1665C - Tree Infection
- 2065E - Skibidus and Rizz
- 1555D - Say No to Palindromes
- 1928C - Physical Education Lesson
- 1109A - Sasha and a Bit of Relax
- 2103C - Median Splits
- 2028C - Alice's Adventures in Cutting Cake
- 2084D - Arcology On Permafrost
- 1689C - Infected Tree
- 1843E - Tracking Segments
- 1741E - Sending a Sequence Over the Network
- 1714D - Color with Occurrences
- 1148B - Born This Way
- 1878D - Reverse Madness
- 1243B2 - Character Swap (Hard Version)
- 1994C - Hungry Games
- 1371D - Grid-00100
- 1476C - Longest Simple Cycle
- 1980E - Permutation of Rows and Columns
- 1175B - Catch Overflow!
- 1137B - Camp Schedule
- 1303C - Perfect Keyboard
- 1520F1 - Guess the K-th Zero (Easy version)
- 1795D - Triangle Coloring
- 1225C - p-binary
- 1593E - Gardener and Tree
- 1917C - Watering an Array
- 1978D - Elections
- 1976C - Job Interview
- 1251C - Minimize The Integer
- 1698D - Fixed Point Guessing
- 1344A - Hilbert's Hotel
- 1203D1 - Remove the Substring (easy version)
- 2070D - Tree Jumps
- 1703G - Good Key, Bad Key
- 1956C - Nene's Magical Matrix
- 1567C - Carrying Conundrum
- 1327C - Game with Chips
- 1163B2 - Cat Party (Hard Edition)
- 1861C - Queries for the Array
- 1198A - MP3
- 1778C - Flexible String
- 1348C - Phoenix and Distribution
- 1353D - Constructing the Array
- 1609D - Social Network
- 1336A - Linova and Kingdom
- 2059C - Customer Service
- 2040C - Ordered Permutations
- 1452D - Radio Towers
- 1374E1 - Reading Books (easy version)
- 1461D - Divide and Summarize
- 1941E - Rudolf and k Bridges
- 1290A - Mind Control
- 1957C - How Does the Rook Move?
- 1475E - Advertising Agency
- 1523C - Compression and Expansion
- 1184D1 - Parallel Universes (Easy)
- 1358C - Celex Update
- 2037E - Kachina's Favorite Binary String
- 1498C - Planar Reflections
- 1862E - Kolya and Movie Theatre
- 2074E - Empty Triangle
- 1468K - The Robot
- 1321C - Remove Adjacent
- 1294D - MEX maximizing
- 1284C - New Year and Permutation
- 1281B - Azamon Web Services
- 1238C - Standard Free2play
- 1437D - Minimal Height Tree
- 1921E - Eat the Chip
- 2052A - Adrenaline Rush
1700
- 1325D - Ehab the Xorcist
- 1554B - Cobb
- 1512G - Short Task
- 2089A - Simple Permutation
- 1770C - Koxia and Number Theory
- 2122C - Manhattan Pairs
- 1485C - Floor and Mod
- 1883E - Look Back
- 1879D - Sum of XOR Functions
- 1469D - Ceil Divisions
- 2050F - Maximum modulo equality
- 1268A - Long Beautiful Integer
- 1144F - Graph Without Long Directed Paths
- 1971G - XOUR
- 1672D - Cyclic Rotation
- 1312D - Count the Arrays
- 1681D - Required Length
- 1983D - Swap Dilemma
- 1557C - Moamen and XOR
- 1148C - Crazy Diamond
- 1881F - Minimum Maximum Distance
- 2018C - Tree Pruning
- 1473D - Program
- 1537D - Deleting Divisors
- 1969C - Minimizing the Sum
- 1814B - Long Legs
- 1896D - Ones and Twos
- 1986E - Beautiful Array
- 1132C - Painting the Fence
- 1695C - Zero Path
- 1792D - Fixed Prefix Permutations
- 1176E - Cover it!
- 1822G1 - Magic Triples (Easy Version)
- 1467B - Hills And Valleys
- 2123F - Minimize Fixed Points
- 1799C - Double Lexicographically Minimum
- 1916D - Mathematical Problem
- 2112D - Reachability and Tree
- 1849D - Array Painting
- 1219C - Periodic integer number
- 1168A - Increasing by Modulo
- 2039D - Shohag Loves GCD
- 1621C - Hidden Permutations
- 1329B - Dreamoon Likes Sequences
- 1731C - Even Subarrays
- 1592C - Bakry and Partitioning
- 1948D - Tandem Repeats?
- 1722F - L-shapes
- 1253D - Harmonious Graph
- 1731D - Valiant's New Map
- 1619E - MEX and Increments
- 1217C - The Number Of Good Substrings
- 1706D1 - Chopping Carrots (Easy Version)
- 1157E - Minimum Array
- 1478C - Nezzar and Symmetric Array
- 1111B - Average Superhero Gang Power
- 1343D - Constant Palindrome Sum
- 1336B - Xenia and Colorful Gems
- 1538D - Another Problem About Dividing Numbers
- 1670D - Very Suspicious
- 1497E1 - Square-Free Division (easy version)
- 2104E - Unpleasant Strings
- 2009F - Firefly's Queries
- 1400B - RPG Protagonist
- 1835A - k-th equality
- 2086D - Even String
- 1551D1 - Domino (easy version)
- 2065G - Skibidus and Capping
- 1829H - Don't Blame Me
- 2031D - Penchick and Desert Rabbit
- 1889B - Doremy's Connecting Plan
- 1102E - Monotonic Renumeration
- 1360F - Spy-string
- 1185D - Extra Element
- 1550C - Manhattan Subarrays
- 1368D - AND, OR and square sum
- 1228C - Primes and Multiplication
- 1324E - Sleeping Schedule
- 2132E - Arithmetics Competition
- 1931F - Chat Screenshots
- 1516C - Baby Ehab Partitions Again
- 1644D - Cross Coloring
- 1451D - Circle Game
- 1608C - Game Master
- 1735D - Meta-set
- 1661C - Water the Trees
- 2041D - Drunken Maze
- 1118C - Palindromic Matrix
- 1777C - Quiz Master
- 1743D - Problem with Random Tests
- 1975D - Paint the Tree
- 1310A - Recommendations
- 1333C - Eugene and an array
- 1295B - Infinite Prefixes
- 1984C2 - Magnitude (Hard Version)
- 1864D - Matrix Cascade
- 1693B - Fake Plastic Trees
- 1411C - Peaceful Rooks
- 1381A2 - Prefix Flip (Hard Version)
- 1194D - 1-2-K Game
Bonus!! Not too short, not too long (1700)
- 2124D - Make a Palindrome
- 1209D - Cow and Snacks
- 1146C - Tree Diameter
- 1700C - Helping the Nature
- 1204C - Anna, Svyatoslav and Maps
- 1684D - Traps
- 2044G1 - Medium Demon Problem (easy version)
- 1468F - Full Turn
- 1580A - Portal
- 1598D - Training Session
- 1985H1 - Maximize the Largest Component (Easy Version)
- 1826D - Running Miles
- 1141E - Superhero Battle
- 1873H - Mad City
- 1111C - Creative Snap
- 1936A - Bitwise Operation Wizard
- 1884C - Medium Design
- 1479A - Searching Local Minimum
- 1365D - Solve The Maze
- 2045A - Scrambled Scrabble
- 1628B - Peculiar Movie Preferences
- 1950F - 0, 1, 2, Tree!
- 2072F - Goodbye, Banker Life
- 1970C2 - Game on Tree (Medium)
- 2113C - Smilo and Minecraft
- 1850H - The Third Letter
- 1934C - Find a Mine
- 1903D1 - Maximum And Queries (easy version)
- 1955E - Long Inversions
- 1114C - Trailing Loves (or L'oeufs?)
- 1690F - Shifting String
- 1893B - Neutral Tonality
- 2027D1 - The Endspeaker (Easy Version)
- 1594D - The Number of Imposters
- 1995B2 - Bouquet (Hard Version)
- 1474C - Array Destruction
- 1157C2 - Increasing Subsequence (hard version)
- 1237C1 - Balanced Removals (Easier)
- 1413D - Shurikens
- 1239A - Ivan the Fool and the Probability Theory
- 2109C2 - Hacking Numbers (Medium Version)
- 1973C - Cat, Fox and Double Maximum
- 1215D - Ticket Game
- 1715C - Monoblock
- 2118D1 - Red Light, Green Light (Easy version)
- 1491C - Pekora and Trampoline
- 1583C - Omkar and Determination
- 1462E2 - Close Tuples (hard version)
- 1503B - 3-Coloring
- 1301C - Ayoub's function
- 2065F - Skibidus and Slay
- 2071C - Trapmigiano Reggiano
- 1422C - Bargain
- 1906M - Triangle Construction
- 1359C - Mixing Water
- 2094G - Chimpanzini Bananini
- 1618E - Singers' Tour
- 2110D - Fewer Batteries
- 1393C - Pinkie Pie Eats Patty-cakes
- 2029C - New Rating
- 1699C - The Third Problem
- 1561D1 - Up the Strip (simplified version)
- 1210A - Anadi and Domino
- 1772E - Permutation Game
- 1203D2 - Remove the Substring (hard version)
- 1779D - Boris and His Amazing Haircut
- 1692H - Gambling
- 1578H - Higher Order Functions
- 2096C - Wonderful City
- 1335E1 - Three Blocks Palindrome (easy version)
- 1709D - Rorororobot
- 1528B - Kavi on Pairing Duty
- 1340B - Nastya and Scoreboard
- 1216C - White Sheet
- 1579F - Array Stabilization (AND version)
- 1406C - Link Cut Centroids
- 1210B - Marcin and Training Camp
- 1930C - Lexicographically Largest
- 1254A - Feeding Chicken
- 1611E1 - Escape The Maze (easy version)
- 1702F - Equate Multisets
- 1992E - Novice's Mistake
- 2030D - QED's Favorite Permutation
- 1279D - Santa's Bot
- 1760G - SlavicG's Favorite Problem
- 1430D - String Deletion
- 1383A - String Transformation 1
- 2052F - Fix Flooded Floor
- 1999G2 - Ruler (hard version)
- 1278C - Berry Jam
- 1942C2 - Bessie's Birthday Cake (Hard Version)
- 1453C - Triangles
- 1332D - Walk on Matrix
- 1131F - Asya And Kittens
- 1822F - Gardening Friends
- 1292B - Aroma's Search
- 1660F1 - Promising String (easy version)
- 1677B - Tokitsukaze and Meeting
- 1249E - By Elevator or Stairs?
- 1776F - Train Splitting
1800
- 1295D - Same GCDs
- 1225D - Power Products
- 1691D - Max GEQ Sum
- 1852A - Ntarsis' Set
- 1552D - Array Differentiation
- 2043D - Problem about GCD
- 1554C - Mikasa
- 1177B - Digits Sequence (Hard Edition)
- 2121F - Yamakasi
- 1758D - Range = √Sum
- 1208C - Magic Grid
- 1648B - Integral Array
- 1805D - A Wide, Wide Graph
- 1477A - Nezzar and Board
- 1637D - Yet Another Minimization Problem
- 1666C - Connect the Points
- 1781D - Many Perfect Squares
- 1935D - Exam in MAC
- 1213G - Path Queries
- 1721D - Maximum AND
- 2039C2 - Shohag Loves XOR (Hard Version)
- 1750D - Count GCD
- 2033F - Kosuke's Sloth
- 1907F - Shift and Reverse
- 1491D - Zookeeper and The Infinite Zoo
- 2071D1 - Infinite Sequence (Easy Version)
- 1152C - Neko does Maths
- 1249D2 - Too Many Segments (hard version)
- 1249D1 - Too Many Segments (easy version)
- 1118F1 - Tree Cutting (Easy Version)
- 1267L - Lexicography
- 1904D2 - Set To Max (Hard Version)
- 1852B - Imbalanced Arrays
- 1635D - Infinite Set
- 1974E - Money Buys Happiness
- 1355C - Count Triangles
- 1995C - Squaring
- 1861D - Sorting By Multiplication
- 1554D - Diane
- 1990D - Grid Puzzle
- 1437C - Chef Monocarp
- 1500A - Going Home
- 1326D2 - Prefix-Suffix Palindrome (Hard version)
- 1466E - Apollo versus Pan
- 1548B - Integers Have Friends
- 1965B - Missing Subsequence Sum
- 1630B - Range and Partition
- 1286B - Numbers on Tree
- 1327E - Count The Blocks
- 1107D - Compression
- 1949I - Disks
- 1768D - Lucky Permutation
- 1138B - Circus
- 1833G - Ksyusha and Chinchilla
- 1968F - Equal XOR Segments
- 2081A - Math Division
- 1705D - Mark and Lightbulbs
- 1709C - Recover an RBS
- 2008G - Sakurako's Task
- 1334D - Minimum Euler Cycle
- 1396B - Stoned Game
- 1442B - Identify the Operations
- 1732C1 - Sheikh (Easy version)
- 1867D - Cyclic Operations
- 1136D - Nastya Is Buying Lunch
- 1156B - Ugly Pairs
- 1324F - Maximum White Subtree
- 1509C - The Sports Festival
- 2069D - Palindrome Shuffle
- 1809D - Binary String Sorting
- 1954D - Colored Balls
- 1870D - Prefix Purchase
- 1987D - World is Mine
- 1401D - Maximum Distributed Tree
- 1583D - Omkar and the Meaning of Life
- 1221D - Make The Fence Great Again
- 1148D - Dirty Deeds Done Dirt Cheap
- 1970E1 - Trails (Easy)
- 1720D1 - Xor-Subsequence (easy version)
- 1572A - Book
- 1172A - Nauuo and Cards
- 1556D - Take a Guess
- 2035D - Yet Another Real Number Problem
- 1582F1 - Korney Korneevich and XOR (easy version)
- 1329A - Dreamoon Likes Coloring
- 2025D - Attribute Checks
- 2078D - Scammy Game Ad
- 1575D - Divisible by Twenty-Five
- 1508B - Almost Sorted
- 1552C - Maximize the Intersections
- 1462F - The Treasure of The Segments
- 1244D - Paint the Tree
- 1841C - Ranom Numbers
- 1922E - Increasing Subsequences
- 2020D - Connect the Dots
- 1442A - Extreme Subtraction
- 1556C - Compressed Bracket Sequence
- 1856E1 - PermuTree (easy version)
- 1286A - Garland
- 1675F - Vlad and Unfinished Business
Bonus!! Not too short, not too long (1800)
- 1620C - BA-String
- 1728D - Letter Picking
- 1941F - Rudolf and Imbalance
- 1394A - Boboniu Chats with Du
- 2117F - Wildflower
- 1420D - Rescue Nibel!
- 1250J - The Parade
- 1666L - Labyrinth
- 1534D - Lost Tree
- 2092D - Mishkin Energizer
- 1955F - Unfair Game
- 1845D - Rating System
- 1793D - Moscow Gorillas
- 1187C - Vasya And Array
- 1851F - Lisa and the Martians
- 1196E - Connected Component on a Chessboard
- 1316C - Primitive Primes
- 1267J - Just Arrange the Icons
- 1338B - Edge Weight Assignment
- 1780D - Bit Guessing Game
- 1759F - All Possible Digits
- 1283D - Christmas Trees
- 1525D - Armchairs
- 1725M - Moving Both Hands
- 1299B - Aerodynamic
- 1283E - New Year Parties
- 1296E1 - String Coloring (easy version)
- 1328D - Carousel
- 1713D - Tournament Countdown
- 1176D - Recover it!
- 1846E2 - Rudolf and Snowflakes (hard version)
- 1398D - Colored Rectangles
- 1617D1 - Too Many Impostors (easy version)
- 1930D1 - Sum over all Substrings (Easy Version)
- 2101B - Quartet Swapping
- 1186C - Vus the Cossack and Strings
- 2022C - Gerrymandering
- 2014E - Rendez-vous de Marian et Robin
- 1981C - Turtle and an Incomplete Sequence
- 1734D - Slime Escape
- 1718A1 - Burenka and Traditions (easy version)
- 1108E1 - Array and Segments (Easy version)
- 1935C - Messenger in MAC
- 1409E - Two Platforms
- 1250B - The Feast and the Bus
- 1674F - Desktop Rearrangement
- 1154E - Two Teams
- 1133E - K Balanced Teams
- 1560E - Polycarp and String Transformation
- 1335E2 - Three Blocks Palindrome (hard version)
- 1517D - Explorer Space
- 1848C - Vika and Price Tags
- 1912K - Kim's Quest
- 1450D - Rating Compression
- 1862F - Magic Will Save the World
- 1119D - Frets On Fire
- 2120D - Matrix game
- 1824B1 - LuoTianyi and the Floating Islands (Easy Version)
- 1463C - Busy Robot
- 1254B1 - Send Boxes to Alice (Easy Version)
- 1446B - Catching Cheaters
- 2106E - Wolf
- 1859D - Andrey and Escape from Capygrad
- 1979D - Fixing a Binary String
- 1179B - Tolik and His Uncle
- 1304D - Shortest and Longest LIS
- 1740E - Hanging Hearts
- 1678B2 - Tokitsukaze and Good 01-String (hard version)
- 1729E - Guess the Cycle Size
- 1801B - Buying gifts
- 1207D - Number Of Permutations
- 1151C - Problem for Nazar
- 1915G - Bicycles
- 1923D - Slimes
- 1190B - Tokitsukaze, CSL and Stone Game
- 1611F - ATM and Students
- 1252H - Twin Buildings
- 1846F - Rudolph and Mimic
- 2042C - Competitive Fishing
- 1129A2 - Toy Train
- 2006B - Iris and the Tree
- 2005C - Lazy Narek
- 1725H - Hot Black Hot White
- 1426E - Rock, Paper, Scissors
- 1468J - Road Reform
- 1290B - Irreducible Anagrams
- 1619D - New Year's Problem
- 1775D - Friendly Spiders
- 2127D - Root was Built by Love, Broken by Destiny
- 1381B - Unmerge
- 1475D - Cleaning the Phone
1900
- 1400D - Zigzags
- 1909I - Short Permutation Problem
- 1957D - A BIT of an Inequality
- 1492D - Genius's Gambit
- 1895D - XOR Construction
- 1656D - K-good
- 1620E - Replace the Numbers
- 1205B - Shortest Cycle
- 1168B - Good Triple
- 1986F - Non-academic Problem
- 2040D - Non Prime Tree
- 1991D - Prime XOR Coloring
- 1285D - Dr. Evil Underscores
- 1996F - Bomb
- 2121G - Gangsta
- 1744E2 - Divisible Numbers (hard version)
- 1921F - Sum of Progression
- 1272E - Nearest Opposite Parity
- 1707B - Difference Array
- 1651D - Nearest Excluded Points
- 1133F2 - Spanning Tree with One Fixed Degree
- 1898D - Absolute Beauty
- 2117G - Omg Graph
- 2018B - Speedbreaker
- 1174D - Ehab and the Expected XOR Problem
- 1909D - Split Plus K
- 1927F - Microcycle
- 1264B - Beautiful Sequence
- 1155D - Beautiful Array
- 2077B - Finding OR Sum
- 1560F1 - Nearest Beautiful Number (easy version)
- 2026D - Sums of Segments
- 1119E - Pavel and Triangles
- 2094H - La Vaca Saturno Saturnita
- 1328E - Tree Queries
- 1360G - A/B Matrix
- 1303D - Fill The Bag
- 1430E - String Reversal
- 2000F - Color Rows and Columns
- 1902E - Collapsing Strings
- 1715D - 2+ doors
- 1714F - Build a Tree and That Is It
- 1920D - Array Repetition
- 1463D - Pairs
- 1787D - Game on Axis
- 2013D - Minimize the Difference
- 1486C2 - Guessing the Greatest (hard version)
- 1600E - Array Game
- 1444B - Divide and Sum
- 1891D - Suspicious logarithms
- 1627D - Not Adding
- 1208D - Restore Permutation
- 1774E - Two Chess Pieces
- 1147B - Chladni Figure
- 1912A - Accumulator Apex
- 2050G - Tree Destruction
- 1791G2 - Teleporters (Hard Version)
- 1777D - Score of a Tree
- 1365E - Maximum Subsequence Value
- 1854A2 - Dual (Hard Version)
- 1593D2 - Half of Same
- 2029D - Cool Graph
- 1647D - Madoka and the Best School in Russia
- 1746D - Paths on the Tree
- 1213E - Two Small Strings
- 1994D - Funny Game
- 1794D - Counting Factorizations
- 1144E - Median String
- 1739D - Reset K Edges
- 2066B - White Magic
- 1439A2 - Binary Table (Hard Version)
- 1991E - Coloring Game
- 1902D - Robot Queries
- 1701D - Permutation Restoration
- 1946D - Birthday Gift
- 1624G - MinOr Tree
- 1508A - Binary Literature
- 1311F - Moving Points
- 1834D - Survey in Class
- 1307D - Cow and Fields
- 1175D - Array Splitting
- 1197D - Yet Another Subarray Problem
- 1348D - Phoenix and Science
- 1242B - 0-1 MST
- 1977C - Nikita and LCM
- 1747D - Yet Another Problem
- 1968G1 - Division + LCP (easy version)
- 1354D - Multiset
- 1689D - Lena and Matrix
- 1932F - Feed Cats
- 2036F - XORificator 3000
- 1817B - Fish Graph
- 1601B - Frog Traveler
- 1773A - Amazing Trick
- 1784B - Letter Exchange
- 2093G - Shorten the Array
- 2044G2 - Medium Demon Problem (hard version)
- 1470B - Strange Definition
- 1238D - AB-string
- 1294E - Obtain a Permutation
Bonus!! Not too short, not too long (1900)
- 1421D - Hexagons
- 2042D - Recommendations
- 1276B - Two Fairs
- 1251D - Salary Changing
- 2068F - Mascot Naming
- 1882D - Tree XOR
- 1585D - Yet Another Sorting Problem
- 1846G - Rudolf and CodeVid-23
- 2009G1 - Yunli's Subarray Queries (easy version)
- 1475G - Strange Beauty
- 1679D - Toss a Coin to Your Graph...
- 1659D - Reverse Sort Sum
- 1970C3 - Game on Tree (Hard)
- 1878F - Vasilije Loves Number Theory
- 1114D - Flood Fill
- 1925D - Good Trip
- 1545B - AquaMoon and Chess
- 1178E - Archaeology
- 1644E - Expand the Path
- 1383B - GameGame
- 2059D - Graph and Graph
- 1467C - Three Bags
- 1801C - Music Festival
- 2038G - Guess One Character
- 1998C - Perform Operations to Maximize Score
- 1949C - Annual Ants' Gathering
- 1696D - Permutation Graph
- 1613D - MEX Sequences
- 1477B - Nezzar and Binary String
- 1202D - Print a 1337-string...
- 1237C2 - Balanced Removals (Harder)
- 1950G - Shuffling Songs
- 1797D - Li Hua and Tree
- 1922D - Berserk Monsters
- 1423B - Valuable Paper
- 1216E1 - Numerical Sequence (easy version)
- 1413C - Perform Easily
- 1270D - Strange Device
- 1353E - K-periodic Garland
- 1673D - Lost Arithmetic Progression
- 1702G1 - Passable Paths (easy version)
- 1494C - 1D Sokoban
- 1928D - Lonely Mountain Dungeons
- 2001D - Longest Max Min Subsequence
- 1495B - Let's Go Hiking
- 2044F - Easy Demon Problem
- 1558B - Up the Strip
- 1228D - Complete Tripartite
- 2111E - Changing the String
- 1799D1 - Hot Start Up (easy version)
- 1361B - Johnny and Grandmaster
- 1569D - Inconvenient Pairs
- 2128E1 - Submedians (Easy Version)
- 1969D - Shop Game
- 1821D - Black Cells
- 1800F - Dasha and Nightmares
- 1661D - Progressions Covering
- 1183H - Subsequences (hard version)
- 1992F - Valuable Cards
- 1475F - Unusual Matrix
- 1974F - Cutting Game
- 1989D - Smithing Skill
- 1918D - Blocking Elements
- 1404B - Tree Tag
- 1738D - Permutation Addicts
- 1883G2 - Dances (Hard Version)
- 1305D - Kuroni and the Celebration
- 2089B1 - Canteen (Easy Version)
- 1926G - Vlad and Trouble at MIT
- 1718A2 - Burenka and Traditions (hard version)
- 1929D - Sasha and a Walk in the City
- 1914F - Programming Competition
- 1220D - Alex and Julian
- 1759G - Restore the Permutation
- 1141F2 - Same Sum Blocks (Hard)
- 1141F1 - Same Sum Blocks (Easy)
- 2131F - Unjust Binary Life
- 1955G - GCD on a grid
- 1358D - The Best Vacation
- 1200D - White Lines
- 1207E - XOR Guessing
- 1677C - Tokitsukaze and Two Colorful Tapes
- 2109D - D/D/D
- 1648C - Tyler and Strings
- 1153D - Serval and Rooted Tree
- 1808C - Unlucky Numbers
- 1547F - Array Stabilization (GCD version)
- 1375D - Replace by MEX
- 2064D - Eating
- 1105D - Kilani and the Game
- 1887B - Time Travel
- 1342D - Multiple Testcases
- 1729F - Kirei and the Linear Function
- 1823D - Unique Palindromes
- 2002D1 - DFS Checker (Easy Version)
- 2106F - Goblin
- 1277D - Let's Play the Words?
- 1428D - Bouncing Boomerangs
- 1163C1 - Power Transmission (Easy Edition)
- 1163C2 - Power Transmission (Hard Edition)
2000
- 1830B - The BOSS Can Count Pairs
- 1366D - Two Divisors
- 1198C - Matching vs Independent Set
- 1156C - Match Points
- 1268B - Domino for Young
- 1567D - Expression Evaluation Error
- 1763C - Another Array Problem
- 1616D - Keep the Average High
- 2114F - Small Operations
- 1624F - Interacdive Problem
- 1665D - GCD Guess
- 1244E - Minimizing Difference
- 1391D - 505
- 1132F - Clear the String
- 2075D - Equalization
- 1416B - Make Them Equal
- 1288D - Minimax Problem
- 1294F - Three Paths on a Tree
- 1622D - Shuffle
- 2041C - Cube
- 1984D - ''a'' String Problem
- 2045B - ICPC Square
- 1416C - XOR Inverse
- 2061E - Kevin and And
- 1872G - Replace With Product
- 1900D - Small GCD
- 2037G - Natlan Exploring
- 1672F1 - Array Shuffling
- 1923E - Count Paths
- 1891F - A Growing Tree
- 1726D - Edge Split
- 1385E - Directing Edges
- 1209E1 - Rotate Columns (easy version)
- 1311D - Three Integers
- 1200E - Compress Words
- 1646D - Weight the Tree
- 1101D - GCD Counting
- 2131G - Wafu!
- 1733D2 - Zero-One (Hard Version)
- 1521C - Nastia and a Hidden Permutation
- 1147C - Thanos Nim
- 1951E - No Palindromes
- 1987E - Wonderful Tree!
- 1558C - Bottom-Tier Reversals
- 1103B - Game with modulo
- 1905D - Cyclic MEX
- 1857G - Counting Graphs
- 1827B1 - Range Sorting (Easy Version)
- 1685B - Linguistics
- 2051F - Joker
- 1354C2 - Not So Simple Polygon Embedding
- 1682D - Circular Spanning Tree
- 1536D - Omkar and Medians
- 1359E - Modular Stability
- 2126F - 1-1-1, Free Tree!
- 1493C - K-beautiful Strings
- 2048E - Kevin and Bipartite Graph
- 1994E - Wooden Game
- 1992G - Ultra-Meow
- 1349B - Orac and Medians
- 1978E - Computing Machine
- 1451E1 - Bitwise Queries (Easy Version)
- 1851G - Vlad and the Mountains
- 1970E2 - Trails (Medium)
- 1889C1 - Doremy's Drying Plan (Easy Version)
- 1370D - Odd-Even Subsequence
- 1943B - Non-Palindromic Substring
- 1956D - Nene and the Mex Operator
- 1408D - Searchlights
- 1744F - MEX vs MED
- 2020E - Expected Power
- 1620D - Exact Change
- 1234E - Special Permutations
- 1788D - Moving Dots
- 1988D - The Omnipotent Monster Killer
- 1388D - Captain Flint and Treasure
- 1359D - Yet Another Yet Another Task
- 1712D - Empty Graph
- 1974G - Money Buys Less Happiness Now
- 1363E - Tree Shuffling
- 1638D - Big Brush
- 1525C - Robot Collisions
- 1102F - Elongated Matrix
- 1244C - The Football Season
- 1753C - Wish I Knew How to Sort
- 1513D - GCD and MST
- 1415D - XOR-gun
- 1796D - Maximum Subarray
- 1680E - Moving Chips
- 1716C - Robot in a Hallway
- 1764D - Doremy's Pegging Game
- 1438C - Engineer Artem
- 1976D - Invertible Bracket Sequences
- 1349C - Orac and Game of Life
- 1380D - Berserk And Fireball
- 1931G - One-Dimensional Puzzle
- 1204D1 - Kirk and a Binary String (easy version)
- 2057D - Gifts Order
- 1903E - Geo Game
- 1379C - Choosing flowers
Bonus!! Not too short, not too long (2000)
- 1951D - Buying Jewels
- 1157F - Maximum Balanced Circle
- 2096D - Wonderful Lightbulbs
- 1867E1 - Salyg1n and Array (simple version)
- 1454E - Number of Simple Paths
- 1716D - Chip Move
- 1893C - Freedom of Choice
- 1584D - Guess the Permutation
- 1487E - Cheap Dinner
- 1674G - Remove Directed Edges
- 1256F - Equalizing Two Strings
- 1619G - Unusual Minesweeper
- 1209G1 - Into Blocks (easy version)
- 1641B - Repetitions Decoding
- 1634D - Finding Zero
- 1702G2 - Passable Paths (hard version)
- 1190D - Tokitsukaze and Strange Rectangle
- 1936B - Pinball
- 1481D - AB Graph
- 1256E - Yet Another Division Into Teams
- 1551E - Fixed Points
- 2062E1 - The Game (Easy Version)
- 1574D - The Strongest Build
- 1582E - Pchelyonok and Segments
- 1304E - 1-Trees and Queries
- 1219G - Harvester
- 1142B - Lynyrd Skynyrd
- 1183E - Subsequences (easy version)
- 1610D - Not Quite Lee
- 1941G - Rudolf and Subway
- 1624E - Masha-forgetful
- 1296E2 - String Coloring (hard version)
- 2068J - The Ultimate Wine Tasting Event
- 1772F - Copy of a Copy of a Copy
- 1426F - Number of Subsequences
- 1237D - Balanced Playlist
- 1514D - Cut and Stick
- 1696E - Placing Jinas
- 1618F - Reverse
- 1770D - Koxia and Game
- 1566E - Buds Re-hanging
- 1223D - Sequence Sorting
- 2063D - Game With Triangles
- 1725C - Circular Mirror
- 2085D - Serval and Kaitenzushi Buffet
- 1815B - Sum Graph
- 1613E - Crazy Robot
- 1599C - Bubble Strike
- 1674E - Breaking the Wall
- 1718B - Fibonacci Strings
- 1690G - Count the Trains
- 1506G - Maximize the Remaining String
- 1783D - Different Arrays
- 1862G - The Great Equalizer
- 1841D - Pairs of Segments
- 1266D - Decreasing Debts
- 1731E - Graph Cost
- 2014F - Sheriff's Defense
- 1165F2 - Microtransactions (hard version)
- 1165F1 - Microtransactions (easy version)
- 2129C2 - Interactive RBS (Medium Version)
- 1919H - Tree Diameter
- 2028D - Alice's Adventures in Cards
- 1427C - The Hard Work of Paparazzi
- 1210C - Kamil and Making a Stream
- 1399E1 - Weights Division (easy version)
- 2052J - Judicious Watching
- 1458B - Glass Half Spilled
- 1288E - Messenger Simulator
- 1741F - Multi-Colored Segments
- 1657D - For Gamers. By Gamers.
- 1632D - New Year Concert
- 1248D1 - The World Is Just a Programming Task (Easy Version)
- 1129B - Wrong Answer
- 1250N - Wires
- 1257E - The Contest
- 1804D - Accommodation
- 1612E - Messages
- 1185E - Polycarp and Snakes
- 1427D - Unshuffling a Deck
- 1183G - Candy Box (hard version)
- 1344B - Monopole Magnets
- 1320C - World of Darkraft: Battle for Azathoth
- 1881G - Anya and the Mysterious String
- 1214E - Petya and Construction Set
2100
- 1748D - ConstructOR
- 1884D - Counting Rhyme
- 1499D - The Number of Pairs
- 1667B - Optimal Partition
- 1493D - GCD of an Array
- 1217D - Coloring Edges
- 1207F - Remainder Problem
- 1761D - Carry Bit
- 1312E - Array Shrinking
- 2038B - Make It Equal
- 1778D - Flexible String Revisit
- 1486D - Max Median
- 1433F - Zero Remainder Sum
- 1575L - Longest Array Deconstruction
- 1560F2 - Nearest Beautiful Number (hard version)
- 1184A2 - Heidi Learns Hashing (Medium)
- 1637E - Best Pair
- 1167E - Range Deleting
- 1364D - Ehab's Last Corollary
- 1684E - MEX vs DIFF
- 1510D - Digits
- 1146D - Frog Jumping
- 1151E - Number of Components
- 1975E - Chain Queries
- 1762D - GCD Queries
- 1411D - Grime Zoo
- 1551D2 - Domino (hard version)
- 1734E - Rectangular Congruence
- 1913D - Array Collapse
- 1906F - Maximize The Value
- 2115B - Gellyfish and Camellia Japonica
- 1354E - Graph Coloring
- 1811F - Is It Flower?
- 1614D1 - Divan and Kostomuksha (easy version)
- 1271E - Common Number
- 2004E - Not a Nim Problem
- 1409F - Subsequences of Length Two
- 1555E - Boring Segments
- 1419E - Decryption
- 1732C2 - Sheikh (Hard Version)
- 1538G - Gift Set
- 1920E - Counting Binary Strings
- 2123G - Modular Sorting
- 1454F - Array Partition
- 1790F - Timofey and Black-White Tree
- 1516D - Cut
- 1365F - Swaps Again
- 1767C - Count Binary Strings
- 1811G1 - Vlad and the Nice Paths (easy version)
- 2068C - Ads
- 1876C - Autosynthesis
- 2008H - Sakurako's Test
- 1213F - Unstable String Sort
- 1372D - Omkar and Circle
- 1934D1 - XOR Break --- Solo Version
- 2038K - Grid Walk
- 1710B - Rain
- 1223E - Paint the Tree
- 2107D - Apple Tree Traversing
- 2029E - Common Generator
- 1322B - Present
- 1530E - Minimax
- 1896E - Permutation Sorting
- 2052D - DAG Serialization
- 1117D - Magic Gems
- 2045I - Microwavable Subsequence
- 1355E - Restorer Distance
- 1366E - Two Arrays
- 1866G - Grouped Carriages
- 1832D1 - Red-Blue Operations (Easy Version)
- 2124E - Make it Zero
- 1472F - New Year's Puzzle
- 1184E2 - Daleks' Invasion (medium)
- 1810E - Monsters
- 2044H - Hard Demon Problem
- 1176F - Destroy it!
- 1606E - Arena
- 1389D - Segment Intersections
- 1866H - Happy Sets
- 1201D - Treasure Hunting
- 1299C - Water Balance
- 1942D - Learning to Paint
- 1154F - Shovels Shop
- 1252K - Addition Robot
- 1120C - Compress String
- 1801D - The way home
- 1948E - Clique Partition
- 1216F - Wi-Fi
- 1158C - Permutation recovery
- 2051G - Snakes
- 2119D - Token Removing
- 1204D2 - Kirk and a Binary String (hard version)
- 1370E - Binary Subsequence Rotation
- 1650G - Counting Shortcuts
- 1450C1 - Errich-Tac-Toe (Easy Version)
- 1278D - Segment Tree
- 1856D - More Wrong
- 1511E - Colorings and Dominoes
- 1799D2 - Hot Start Up (hard version)
- 1924B - Space Harbour
Bonus!! Not too short, not too long (2100)
- 1553E - Permutation Shift
- 1628D1 - Game on Sum (Easy Version)
- 1900E - Transitive Graph
- 1187E - Tree Painting
- 2046C - Adventurers
- 2074G - Game With Triangles: Season 2
- 1363D - Guess The Maximums
- 1930D2 - Sum over all Substrings (Hard Version)
- 1152D - Neko and Aki's Prank
- 1296F - Berland Beauty
- 2005E1 - Subtangle Game (Easy Version)
- 1265E - Beautiful Mirrors
- 2092E - She knows...
- 1185F - Two Pizzas
- 1108E2 - Array and Segments (Hard version)
- 1654D - Potion Brewing Class
- 1163D - Mysterious Code
- 1593F - Red-Black Number
- 2040E - Control of Randomness
- 1787E - The Harmonization of XOR
- 1332E - Height All the Same
- 1203F1 - Complete the Projects (easy version)
- 1482E - Skyline Photo
- 1971H - ±1
- 1729G - Cut Substrings
- 1863E - Speedrun
- 1433G - Reducing Delivery Cost
- 1367F1 - Flying Sort (Easy Version)
- 1914G1 - Light Bulbs (Easy Version)
- 1166E - The LCMs Must be Large
- 1599H - Hidden Fortress
- 1808D - Petya, Petya, Petr, and Palindromes
- 1666J - Job Lookup
- 1218I - The Light Square
- 1525E - Assimilation IV
- 1202C - You Are Given a WASD-string...
- 1393D - Rarity and New Dress
- 1183F - Topforces Strikes Back
- 1254B2 - Send Boxes to Alice (Hard Version)
- 2061F1 - Kevin and Binary String (Easy Version)
- 1108F - MST Unification
- 1185G1 - Playlist for Polycarp (easy version)
- 1598E - Staircases
- 1886D - Monocarp and the Set
- 1343E - Weights Distributing
- 1660F2 - Promising String (hard version)
- 2037F - Ardent Flames
- 1479B2 - Painting the Array II
- 2127E - Ancient Tree
- 1771D - Hossam and (sub-)palindromic tree
- 1252G - Performance Review
- 1919D - 01 Tree
- 1538E - Funny Substrings
- 1868B2 - Candy Party (Hard Version)
- 1821E - Rearrange Brackets
- 2003D2 - Turtle and a MEX Problem (Hard Version)
- 1420C2 - Pokémon Army (hard version)
- 1413E - Solo mid Oracle
- 1970D1 - Arithmancy (Easy)
- 1446C - Xor Tree
- 1195E - OpenStreetMap
- 1472G - Moving to the Capital
- 1626D - Martial Arts Tournament
- 2000G - Call During the Journey
- 1333D - Challenges in school №41
- 1106E - Lunar New Year and Red Envelopes
- 1360H - Binary Median
- 1418D - Trash Problem
- 2132F - Rada and the Chamomile Valley
- 1267K - Key Storage
- 1250C - Trip to Saint Petersburg
- 1864E - Guess Game
- 1671E - Preorder
- 1284D - New Year and Conference
- 1547G - How Many Paths?
- 1776G - Another Wine Tasting Event
- 1906J - Count BFS Graph
- 1392E - Omkar and Duck
2200
- 1373E - Sum of Digits
- 1070A - Find a Number
- 1156E - Special Segments of Permutation
- 1154G - Minimum Possible LCM
- 1967B2 - Reverse Card (Hard Version)
- 1656E - Equal Tree Sums
- 1168C - And Reachability
- 1730D - Prefixes and Suffixes
- 1175E - Minimal Segment Cover
- 1389E - Calendar Ambiguity
- 1503C - Travelling Salesman Problem
- 1646E - Power Board
- 1630C - Paint the Middle
- 1575G - GCD Festival
- 1537F - Figure Fixing
- 2018D - Max Plus Min Plus Size
- 1926F - Vlad and Avoiding X
- 1991F - Triangle Formation
- 1763D - Valid Bitonic Permutations
- 1907G - Lights
- 1438D - Powerful Ksenia
- 1949F - Dating
- 1437E - Make It Increasing
- 2013E - Prefix GCD
- 1156D - 0-1-Tree
- 1140E - Palindrome-less Arrays
- 1717E - Madoka and The Best University
- 2060F - Multiplicative Arrays
- 1155E - Guess the Root
- 1704E - Count Seconds
- 1986G1 - Permutation Problem (Simple Version)
- 1551F - Equidistant Vertices
- 1196F - K-th Path
- 1822G2 - Magic Triples (Hard Version)
- 1616E - Lexicographically Small Enough
- 1136E - Nastya Hasn't Written a Legend
- 1166D - Cute Sequences
- 1485D - Multiples and Power Differences
- 2056D - Unique Median
- 2112E - Tree Colorings
- 1777E - Edge Reverse
- 1763E - Node Pairs
- 1909F1 - Small Permutation Problem (Easy Version)
- 1249F - Maximum Weight Subset
- 1034B - Little C Loves 3 II
- 1841E - Fill the Matrix
- 1486E - Paired Payment
- 1468A - LaIS
- 1105E - Helping Hiasat
- 1996G - Penacony
- 2101C - 23 Kingdom
- 1832E - Combinatorics Problem
- 1208E - Let Them Slide
- 1567E - Non-Decreasing Dilemma
- 1806E - Tree Master
- 1428E - Carrots for Rabbits
- 1184C2 - Heidi and the Turing Test (Medium)
- 1333F - Kate and imperfection
- 1037E - Trips
- 1311E - Construct the Binary Tree
- 1946E - Girl Permutation
- 1157G - Inverse of Rows and Columns
- 2085E - Serval and Modulo
- 1968G2 - Division + LCP (hard version)
- 1921G - Mischievous Shooter
- 1327D - Infinite Path
- 1303E - Erase Subsequences
- 1110D - Jongmah
- 1788E - Sum Over Zero
- 1800G - Symmetree
- 1278E - Tests for problem D
- 1328F - Make k Equal
- 1470D - Strange Housing
- 1515E - Phoenix and Computers
- 1400E - Clear the Multiset
- 1657E - Star MST
- 1406D - Three Sequences
- 2009G2 - Yunli's Subarray Queries (hard version)
- 1097D - Makoto and a Blackboard
- 2034E - Permutations Harmony
- 1811G2 - Vlad and the Nice Paths (hard version)
- 1407D - Discrete Centrifugal Jumps
- 1580C - Train Maintenance
- 1695D1 - Tree Queries (Easy Version)
- 1970E3 - Trails (Hard)
- 2039E - Shohag Loves Inversions
- 1575H - Holiday Wall Ornaments
- 1110E - Magic Stones
- 1424M - Ancient Language
- 1997E - Level Up
- 1474D - Cleaning
- 1045G - AI robots
- 1272F - Two Bracket Sequences
- 1059D - Nature Reserve
- 2045H - Missing Separators
- 1220E - Tourism
- 1918E - ace5 and Task Order
- 1253E - Antenna Coverage
- 1854B - Earn or Unlock
- 1542D - Priority Queue
Bonus!! Not too short, not too long (2200)
- 1898E - Sofia and Strings
- 1526D - Kill Anton
- 1537E2 - Erase and Extend (Hard Version)
- 1721E - Prefix Function Queries
- 1985H2 - Maximize the Largest Component (Hard Version)
- 1860D - Balanced String
- 1338C - Perfect Triples
- 1234F - Yet Another Substring Reverse
- 1666I - Interactive Treasure Hunt
- 2000H - Ksyusha and the Loaded Set
- 1815C - Between
- 1765H - Hospital Queue
- 1559E - Mocha and Stars
- 2126G1 - Big Wins! (easy version)
- 1840G1 - In Search of Truth (Easy Version)
- 1225E - Rock Is Push
- 2062D - Balanced Tree
- 1557D - Ezzat and Grid
- 1520F2 - Guess the K-th Zero (Hard version)
- 1238F - The Maximum Subtree
- 1607H - Banquet Preparations 2
- 2033G - Sakurako and Chefir
- 1641C - Anonymity Is Important
- 1867E2 - Salyg1n and Array (hard version)
- 1556E - Equilibrium
- 2030E - MEXimize the Score
- 1607G - Banquet Preparations 1
- 1477C - Nezzar and Nice Beatmap
- 1622E - Math Test
- 2113D - Cheater
- 1670E - Hemose on the Tree
- 1912E - Evaluate It and Back Again
- 2014G - Milky Days
- 2065H - Bro Thinks He's Him
- 1901E - Compressed Tree
- 1461E - Water Level
- 1216E2 - Numerical Sequence (hard version)
- 2114G - Build an Array
- 2118D2 - Red Light, Green Light (Hard version)
- 1215E - Marbles
- 1575K - Knitting Batik
- 2108D - Needle in a Numstack
- 1848D - Vika and Bonuses
- 1906H - Twin Friends
- 1993D - Med-imize
- 1194E - Count The Rectangles
- 1789D - Serval and Shift-Shift-Shift
- 1784C - Monsters (hard version)
- 1181D - Irrigation
- 1741G - Kirill and Company
- 1498D - Bananas in a Microwave
- 1425E - Excitation of Atoms
- 1178F1 - Short Colorful Strip
- 1583E - Moment of Bloom
- 2045G - X Aura
- 1552F - Telepanting
- 1500B - Two chandeliers
- 1305E - Kuroni and the Score Distribution
- 1353F - Decreasing Heights
- 1772G - Gaining Rating
- 1808E1 - Minibuses on Venus (easy version)
- 1415E - New Game Plus!
- 1520G - To Go Or Not To Go?
- 1579G - Minimal Coverage
- 1666F - Fancy Stack
- 1158B - The minimal unique substring
- 1092D2 - Great Vova Wall (Version 2)
- 2070E - Game with Binary String
- 2072G - I've Been Flipping Numbers for 300 Years and Calculated the Sum
- 1954E - Chain Reaction
- 1627E - Not Escaping
- 1468H - K and Medians
- 1100E - Andrew and Taxi
- 2027D2 - The Endspeaker (Hard Version)
- 1398E - Two Types of Spells
- 1238E - Keyboard Purchase
- 1092D1 - Great Vova Wall (Version 1)
- 1615D - X(or)-mas Tree
- 1998E1 - Eliminating Balls With Merging (Easy Version)
- 1336C - Kaavi and Magic Spell
- 1149B - Three Religions
- 1672E - notepad.exe
- 1659E - AND-MEX Walk
- 1295E - Permutation Separation
- 1736D - Equal Binary Subsequences
- 2025E - Card Game
- 1153E - Serval and Snake
- 1045D - Interstellar battle
- 1065D - Three Pieces
- 1334E - Divisor Paths
- 2106G1 - Baudelaire (easy version)
- 1776B - Vittorio Plays with LEGO Bricks
- 1543D2 - RPD and Rap Sheet (Hard Version)
- 1399E2 - Weights Division (hard version)
- 1227E - Arson In Berland Forest
- 1635E - Cars
- 1467D - Sum of Paths
- 1535E - Gold Transfer
- 1003F - Abbreviation
- 1114E - Arithmetic Progression
2300
- 1182E - Product Oriented Recurrence
- 1188B - Count Pairs
- 1553F - Pairwise Modulo
- 1198D - Rectangle Painting 1
- 1681F - Unique Occurrences
- 1468M - Similar Sets
- 1132E - Knapsack
- 1928E - Modular Sequence
- 1167F - Scalar Queries
- 1654E - Arithmetic Operations
- 1834E - MEX of LCM
- 1550D - Excellent Arrays
- 1073E - Segment Sum
- 1093G - Multidimensional Queries
- 2069E - A, B, AB and BA
- 1712E1 - LCM Sum (easy version)
- 1849E - Max to the Right of Min
- 1977D - XORificator
- 1228E - Another Filling the Grid
- 1101G - (Zero XOR Subset)-less
- 1268C - K Integers
- 1404C - Fixed Point Removal
- 1139D - Steps to One
- 1988E - Range Minimum Sum
- 1276C - Beautiful Rectangle
- 1989E - Distance to Different
- 1706E - Qpwoeirut and Vertices
- 1699D - Almost Triple Deletions
- 1866D - Digital Wallet
- 1009F - Dominant Indices
- 2035E - Monster
- 1943C - Tree Compass
- 1270E - Divide Points
- 1552E - Colors and Intervals
- 1982E - Number of k-good subarrays
- 1691E - Number of Groups
- 1385G - Columns Swaps
- 1046I - Say Hello
- 1385F - Removing Leaves
- 1748E - Yet Another Array Counting Problem
- 2110E - Melody
- 1932G - Moving Platforms
- 1967C - Fenwick Tree
- 1601C - Optimal Insertion
- 1917D - Yet Another Inversions Problem
- 1614D2 - Divan and Kostomuksha (hard version)
- 1805E - There Should Be a Lot of Maximums
- 2002E - Cosmic Rays
- 1322C - Instant Noodles
- 1476E - Pattern Matching
- 2066C - Bitwise Slides
- 2121H - Ice Baby
- 1927G - Paint Charges
- 1015F - Bracket Substring
- 1548D1 - Gregor and the Odd Cows (Easy)
- 1783E - Game of the Year
- 1451E2 - Bitwise Queries (Hard Version)
- 1575B - Building an Amusement Park
- 1394B - Boboniu Walks on Graph
- 1695D2 - Tree Queries (Hard Version)
- 1797E - Li Hua and Array
- 1743F - Intersection and Union
- 1929E - Sasha and the Happy Tree Cutting
- 1870E - Another MEX Problem
- 1861E - Non-Intersecting Subpermutations
- 1494D - Dogeforces
- 1204E - Natasha, Sasha and the Prefix Sums
- 1190C - Tokitsukaze and Duel
- 1151F - Sonya and Informatics
- 1342E - Placing Rooks
- 1422D - Returning Home
- 1698E - PermutationForces II
- 1600F - Party Organization
- 1251E1 - Voting (Easy Version)
- 1540B - Tree Array
- 1768E - Partial Sorting
- 1658D2 - 388535 (Hard Version)
- 1148E - Earth Wind and Fire
- 2043E - Matrix Transformation
- 1675G - Sorting Pancakes
- 1995D - Cases
- 1584E - Game with Stones
- 1399F - Yet Another Segments Subset
- 2077C - Binary Subsequence Value Sum
- 2021E1 - Digital Village (Easy Version)
- 1965C - Folding Strip
- 1799E - City Union
- 1096F - Inversion Expectation
- 1085E - Vasya and Templates
- 1450C2 - Errich-Tac-Toe (Hard Version)
- 2002D2 - DFS Checker (Hard Version)
- 1411E - Poman Numbers
- 1983E - I Love Balls
- 1244F - Chips
- 2124F1 - Appending Permutations (Easy Version)
- 1245F - Daniel and Spring Cleaning
- 1156F - Card Bag
- 1842E - Tenzing and Triangle
- 1610E - AmShZ and G.O.A.T.
- 1408F - Two Different
Bonus!! Not too short, not too long (2300)
- 1310D - Tourism
- 1528C - Trees of Tranquillity
- 1070J - Streets and Avenues in Berhattan
- 1575I - Illusions of the Desert
- 1705E - Mark and Professor Koro
- 1536E - Omkar and Forest
- 1781E - Rectangle Shrinking
- 2089B2 - Canteen (Hard Version)
- 2097B - Baggage Claim
- 2057E1 - Another Exercise on Graphs (Easy Version)
- 1814E - Chain Chips
- 1628C - Grid Xor
- 1916E - Happy Life in University
- 2134E - Power Boxes
- 2006C - Eri and Expanded Sets
- 1780F - Three Chairs
- 1316E - Team Building
- 1625D - Binary Spiders
- 1203F2 - Complete the Projects (hard version)
- 1495C - Garden of the Sun
- 1621E - New School
- 2107F1 - Cycling (Easy Version)
- 1824B2 - LuoTianyi and the Floating Islands (Hard Version)
- 1693C - Keshi in Search of AmShZ
- 1919F1 - Wine Factory (Easy Version)
- 2134D - Sliding Tree
- 1592D - Hemose in ICPC ?
- 1065E - Side Transmutations
- 2068A - Condorcet Elections
- 2120E - Lanes of Cars
- 2028E - Alice's Adventures in the Rabbit Hole
- 1004D - Sonya and Matrix
- 1929F - Sasha and the Wedding Binary Search Tree
- 1914G2 - Light Bulbs (Hard Version)
- 1172C1 - Nauuo and Pictures (easy version)
- 1980G - Yasya and the Mysterious Tree
- 1864F - Exotic Queries
- 1949G - Scooter
- 2129C3 - Interactive RBS (Hard Version)
- 1607F - Robot on the Board 2
- 1603C - Extreme Extension
- 1728E - Red-Black Pepper
- 1425D - Danger of Mad Snakes
- 1878G - wxhtzdy ORO Tree
- 1304F1 - Animal Observation (easy version)
- 1513E - Cost Equilibrium
- 2063E - Triangle Tree
- 1217E - Sum Queries?
- 1798E - Multitest Generator
- 1045C - Hyperspace Highways
- 1042E - Vasya and Magic Matrix
- 1942E - Farm Game
- 1874C - Jellyfish and EVA
- 1039A - Timetable
- 2091G - Gleb and Boating
- 1282D - Enchanted Artifact
- 1895E - Infinite Card Game
- 1594E2 - Rubik's Cube Coloring (hard version)
- 1534E - Lost Array
- 1790G - Tokens on Graph
- 2041H - Sheet Music
- 1866I - Imagination Castle
- 1371E2 - Asterism (Hard Version)
- 1738E - Balance Addicts
- 1292C - Xenon's Attack on the Gangs
- 2041I - Auto Complete
- 1254C - Point Ordering
- 1252L - Road Construction
- 1239C - Queue in the Train
- 1250G - Discarding Game
2400
- 1051F - The Shortest Statement
- 932E - Team Work
- 1036E - Covered Points
- 1726E - Almost Perfect
- 915F - Imbalance Value of a Tree
- 1777F - Comfortably Numb
- 1792E - Divisors and Table
- 1585F - Non-equal Neighbours
- 1485F - Copy or Prefix Sum
- 1638E - Colorful Operations
- 1132G - Greedy Subsequences
- 1527D - MEX Tree
- 1423J - Bubble Cup hypothesis
- 922F - Divisibility
- 1114F - Please, another Queries on Array?
- 1619H - Permutation and Queries
- 1374F - Cyclic Shifts Sorting
- 2005D - Alter the GCD
- 912E - Prime Gift
- 1187D - Subarray Sorting
- 959F - Mahmoud and Ehab and yet another xor task
- 1083E - The Fair Nut and Rectangles
- 1874B - Jellyfish and Math
- 990G - GCD Counting
- 1045B - Space Isaac
- 1146E - Hot is Cold
- 1401E - Divide Square
- 1059E - Split the Tree
- 1592E - Bored Bakry
- 1401F - Reverse and Swap
- 1007B - Pave the Parallelepiped
- 1182D - Complete Mirror
- 1093F - Vasya and Array
- 1042F - Leaf Sets
- 1817C - Similar Polynomials
- 1764E - Doremy's Number Line
- 1473E - Minimum Path
- 1482F - Useful Edges
- 1979E - Manhattan Triangle
- 962F - Simple Cycles Edges
- 1634E - Fair Share
- 1455E - Four Points
- 1186F - Vus the Cossack and a Graph
- 1036F - Relatively Prime Powers
- 1981D - Turtle and Multiplication
- 1428F - Fruit Sequences
- 1667C - Half Queen Cover
- 1028E - Restore Array
- 1491E - Fib-tree
- 1902F - Trees and XOR Queries Again
- 2032E - Balanced
- 946F - Fibonacci String Subsequences
- 1107E - Vasya and Binary String
- 1957E - Carousel of Combinations
- 1715E - Long Way Home
- 1202E - You Are Given Some Strings...
- 1670F - Jee, You See?
- 914E - Palindromes in a Tree
- 911F - Tree Destruction
- 1969E - Unique Array
- 1594F - Ideal Farm
- 1032F - Vasya and Maximum Matching
- 1088E - Ehab and a component choosing problem
- 1096G - Lucky Tickets
- 1184E3 - Daleks' Invasion (hard)
- 2110F - Faculty
- 1706D2 - Chopping Carrots (Hard Version)
- 1732D2 - Balance (Hard version)
- 1000F - One Occurrence
- 1093E - Intersection of Permutations
- 1780G - Delicious Dessert
- 1027F - Session in BSU
- 1794E - Labeling the Tree with Distances
- 1709E - XOR Tree
- 1827B2 - Range Sorting (Hard Version)
- 1082G - Petya and Graph
- 1761E - Make It Connected
- 2122D - Traffic Lights
- 1523D - Love-Hate
- 1147D - Palindrome XOR
- 906C - Party
- 1221F - Choose a Square
- 1913E - Matrix Problem
- 1633E - Spanning Tree Queries
- 1575M - Managing Telephone Poles
- 1697E - Coloring
- 2030F - Orangutan Approved Subarrays
- 1632E1 - Distance Tree (easy version)
- 2109E - Binary String Wowee
- 1943D1 - Counting Is Fun (Easy Version)
- 1795F - Blocking Chips
- 1257F - Make Them Similar
- 1844E - Great Grids
- 1620G - Subsequences Galore
- 1499F - Diameter Cuts
- 2086E - Zebra-like Numbers
- 1442C - Graph Transpositions
- 1494E - A-Z Graph
- 1142C - U2
- 1887C - Minimum Array
Bonus!! Not too short, not too long (2400)
- 1091E - New Year and the Acquaintance Estimation
- 1720D2 - Xor-Subsequence (hard version)
- 1605E - Array Equalizer
- 1886E - I Wanna be the Team Leader
- 1630D - Flipping Range
- 1582F2 - Korney Korneevich and XOR (hard version)
- 913E - Logical Expression
- 1707C - DFS Trees
- 1163E - Magical Permutation
- 1016E - Rest In The Shades
- 1038E - Maximum Matching
- 916E - Jamie and Tree
- 1290C - Prefix Enlightenment
- 1044D - Deduction Queries
- 1839E - Decreasing Game
- 1848F - Vika and Wiki
- 1832D2 - Red-Blue Operations (Hard Version)
- 1780E - Josuke and Complete Graph
- 1830C - Hyperregular Bracket Strings
- 1736C2 - Good Subarrays (Hard Version)
- 1242C - Sum Balance
- 1526E - Oolimry and Suffix Array
- 1089K - King Kog's Reception
- 1251E2 - Voting (Hard Version)
- 2126G2 - Big Wins! (hard version)
- 1070I - Privatization of Roads in Berland
- 1005E2 - Median on Segments (General Case Edition)
- 1080F - Katya and Segments Sets
- 1606D - Red-Blue Matrix
- 1436E - Complicated Computations
- 1909E - Multiple Lamps
- 1348E - Phoenix and Berries
- 1774F1 - Magician and Pigs (Easy Version)
- 1819C - The Fox and the Complete Tree Traversal
- 1542E1 - Abnormal Permutation Pairs (easy version)
- 2096E - Wonderful Teddy Bears
- 1809E - Two Tanks
- 1174F - Ehab and the Big Finale
- 1598F - RBS
- 2023C - C+K+S
- 2111F - Puzzle
- 1868C - Travel Plan
- 1608D - Dominoes
- 2118E - Grid Coloring
- 908F - New Year and Rainbow Roads
- 1749E - Cactus Wall
- 1326E - Bombs
- 1408E - Avoid Rainbow Cycles
- 1609E - William The Oblivious
- 1930E - 2..3...4.... Wonderful! Wonderful!
- 1101F - Trucks and Cities
- 1852C - Ina of the Mountain
- 1239D - Catowice City
- 1713E - Cross Swapping
- 1934D2 - XOR Break --- Game Version
- 2060G - Bugged Sort
- 1080E - Sonya and Matrix Beauty
- 2038D - Divide OR Conquer
- 1469E - A Bit Similar
- 1743E - FTL
- 929D - Пограничные врата
- 1978F - Large Graph
- 1984E - Shuffle
- 1106F - Lunar New Year and a Recursive Sequence
- 1628D2 - Game on Sum (Hard Version)
- 1626E - Black and White Tree
- 1905E - One-X
- 1418E - Expected Damage
- 2049E - Broken Queries
- 920D - Tanks
- 1045H - Self-exploration
- 1369E - DeadLee
- 1343F - Restore the Permutation by Sorted Segments
- 1725L - Lemper Cooking Competition
- 1617D2 - Too Many Impostors (hard version)
- 1329C - Drazil Likes Heap
- 2084E - Blossom
- 1935E - Distance Learning Courses in MAC
- 1373F - Network Coverage
- 1826E - Walk the Runway
- 1784D - Wooden Spoon
- 1936C - Pokémon Arena
- 1860E - Fast Travel Text Editor
- 1710E - Two Arrays
- 1090C - New Year Presents
- 1061F - Lost Root
- 1866L - Lihmuf Balling
- 1358E - Are You Fired?
- 1129C - Morse Code
- 1055D - Refactoring
- 1107G - Vasya and Maximum Profit
- 1837F - Editorial for Two
- 1499E - Chaotic Merge
- 1098C - Construct a tree
- 1210D - Konrad and Company Evaluation
- 1924C - Fractal Origami
- 1166F - Vicky's Delivery Service
- 1718C - Tonya and Burenka-179
- 1367F2 - Flying Sort (Hard Version)
- 1750E - Bracket Cost
2500
- 1513F - Swapping Problem
- 909F - AND-permutations
- 1917F - Construct Tree
- 911G - Mass Change Queries
- 1983F - array-value
- 986C - AND Graph
- 1117G - Recursive Queries
- 1773I - Interactive Factorial Guessing
- 1701F - Points
- 2113F - Two Arrays
- 1665E - MinimizOR
- 1468I - Plane Tiling
- 923D - Picking Strings
- 1521D - Nastia Plays with a Tree
- 2026E - Best Subsequence
- 1771F - Hossam and Range Minimum Query
- 1198E - Rectangle Painting 2
- 1175F - The Number of Subpermutations
- 1917E - Construct Matrix
- 1188C - Array Beauty
- 1824C - LuoTianyi and XOR-Tree
- 1712E2 - LCM Sum (hard version)
- 1418G - Three Occurrences
- 908E - New Year and Entity Enumeration
- 963D - Frequency of String
- 1467E - Distinctive Roots in a Tree
- 1710C - XOR Triangle
- 1516E - Baby Ehab Plays with Permutations
- 1327F - AND Segments
- 2071D2 - Infinite Sequence (Hard Version)
- 1946F - Nobody is needed
- 1842F - Tenzing and Tree
- 1838E - Count Supersequences
- 946G - Almost Increasing Array
- 1043F - Make It One
- 1948F - Rare Coins
- 1987F1 - Interesting Problem (Easy Version)
- 1789E - Serval and Music Game
- 954H - Path Counting
- 1731F - Function Sum
- 1986G2 - Permutation Problem (Hard Version)
- 976F - Minimal k-covering
- 1951F - Inversion Composition
- 2075E - XOR Matrix
- 1209E2 - Rotate Columns (hard version)
- 1055E - Segments on the Line
- 1859E - Maximum Monogonosity
- 1497D - Genius
- 1037F - Maximum Reduction
- 1854C - Expected Destruction
- 1572B - Xor of 3
- 1866K - Keen Tree Calculation
- 1527E - Partition Game
- 1497E2 - Square-Free Division (hard version)
- 1174E - Ehab and the Expected GCD Problem
- 1492E - Almost Fault-Tolerant Database
- 1111E - Tree
- 1481E - Sorting Books
- 1146F - Leaf Partition
- 1909F2 - Small Permutation Problem (Hard Version)
- 1305F - Kuroni and the Punishment
- 1325F - Ehab's Last Theorem
- 1847F - The Boss's Identity
- 1716F - Bags with Balls
- 1187F - Expected Square Beauty
- 1990E1 - Catch the Mole(Easy Version)
- 1922F - Replace on Segment
- 1550E - Stringforces
- 1734F - Zeros and Ones
- 1427E - Xum
- 1858E1 - Rollbacks (Easy Version)
- 1228F - One Node is Gone
- 1612G - Max Sum Array
- 1994F - Stardew Valley
- 1398F - Controversial Rounds
- 2117H - Incessant Rain
- 2029F - Palindrome Everywhere
- 1637F - Towers
- 1065F - Up and Down the Tree
- 1984F - Reconstruction
- 1691F - K-Set Tree
- 1559D2 - Mocha and Diana (Hard Version)
- 1788F - XOR, Tree, and Queries
- 1661E - Narrow Components
- 1783F - Double Sort II
- 976D - Degree Set
- 1796E - Colored Subgraphs
- 1556F - Sports Betting
- 1548C - The Three Little Pigs
- 1845E - Boxes and Balls
- 2081B - Balancing
- 2048F - Kevin and Math Class
- 1438E - Yurii Can Do Everything
- 1906K - Deck-Building Game
- 1253F - Cheap Robot
- 1717F - Madoka and The First Session
- 1221E - Game With String
- 1666E - Even Split
- 1375E - Inversion SwapSort
- 1139F - Dish Shopping
Bonus!! Not too short, not too long (2500)
- 1354F - Summoning Minions
- 1840G2 - In Search of Truth (Hard Version)
- 1539E - Game with Cards
- 1814D - Balancing Weapons
- 1903D2 - Maximum And Queries (hard version)
- 2125E - Sets of Complementary Sums
- 1117F - Crisp String
- 1689E - ANDfinity
- 1334F - Strange Function
- 2133E - I Yearned For The Mines
- 1835B - Lottery
- 981G - Magic multisets
- 2021E2 - Digital Village (Hard Version)
- 995D - Game
- 1904E - Tree Queries
- 1767E - Algebra Flash
- 1574E - Coloring
- 1284E - New Year and Castle Construction
- 1195F - Geometers Anonymous Club
- 1903F - Babysitting
- 1508C - Complete the MST
- 1218E - Product Tuples
- 1444C - Team-Building
- 1918F - Caterpillar on a Tree
- 981F - Round Marriage
- 1313D - Happy New Year
- 1073F - Choosing Two Paths
- 997C - Sky Full of Stars
- 1517E - Group Photo
- 958C3 - Encryption (hard)
- 1809F - Traveling in Berland
- 1778E - The Tree Has Fallen!
- 1452E - Two Editorials
- 1973E - Cat, Fox and Swaps
- 1764F - Doremy's Experimental Tree
- 1779F - Xorcerer's Stones
- 1687C - Sanae and Giant Robot
- 1808E2 - Minibuses on Venus (medium version)
- 2057E2 - Another Exercise on Graphs (hard version)
- 1823E - Removing Graph
- 1798F - Gifts from Grandfather Ahmed
- 1776I - Spinach Pizza
- 1041F - Ray in the tube
- 1725J - Journey
- 1137C - Museums Tour
- 930D - Game with Tokens
- 1332F - Independent Set
- 2056E - Nested Segments
- 1420E - Battle Lemmings
- 1076F - Summer Practice Report
- 993D - Compute Power
- 1100F - Ivan and Burgers
- 1470C - Strange Shuffle
- 1787F - Inverse Transformation
- 1188A2 - Add on a Tree: Revolution
- 992E - Nastya and King-Shamans
- 1017F - The Neutral Zone
- 1361C - Johnny and Megan's Necklace
- 1956E1 - Nene vs. Monsters (Easy Version)
- 1891E - Brukhovich and Exams
- 1746E1 - Joking (Easy Version)
- 1758E - Tick, Tock
- 1423H - Virus
- 1998E2 - Eliminating Balls With Merging (Hard Version)
- 1485E - Move and Swap
- 2101D - Mani and Segments
- 1120D - Power Tree
- 1583F - Defender of Childhood Dreams
- 924D - Contact ATC
- 1474E - What Is It?
- 2106G2 - Baudelaire (hard version)
- 1374E2 - Reading Books (hard version)
- 1381C - Mastermind
- 1771E - Hossam and a Letter
- 1673E - Power or XOR?
- 1498F - Christmas Game
- 2038F - Alternative Platforms
- 1320D - Reachable Strings
- 1186E - Vus the Cossack and a Field
- 1725E - Electrical Efficiency
- 1236E - Alice and the Unfair Game
- 1677D - Tokitsukaze and Permutations
- 2005E2 - Subtangle Game (Hard Version)
- 2059E1 - Stop Gaming (Easy Version)
- 989D - A Shade of Moonlight
- 1301E - Nanosoft
- 1585G - Poachers
- 1368E - Ski Accidents
- 1701E - Text Editor
- 1906L - Palindromic Parentheses
- 1611G - Robot and Candies
- 1468G - Hobbits
- 1479C - Continuous City
- 2021D - Boss, Thirsty
- 1239B - The World Is Just a Programming Task (Hard Version)
- 2022E1 - Billetes MX (Easy Version)
- 1716E - Swap and Maximum Block
- 1658E - Gojou and Matrix Game
- 2035F - Tree Operations
- 1562E - Rescue Niwen!
2600
- 1208F - Bits And Pieces
- 1493E - Enormous XOR
- 1486F - Pairs of Paths
- 2081D - MST in Modulo Graph
- 1120E - The very same Munchhausen
- 1762F - Good Pairs
- [problem:802C]
- 1325E - Ehab's REAL Number Theory Problem
- 1584F - Strange LCS
- 2131H - Sea, You & copriMe
- 1656F - Parametric MST
- 1815D - XOR Counting
- 935F - Fafa and Array
- 955F - Heaps
- 1895F - Fancy Arrays
- 1257G - Divisor Set
- 1073G - Yet Another LCP Problem
- 2064F - We Be Summing
- 2042F - Two Subarrays
- 1736E - Swap and Take
- 1348F - Phoenix and Memory
- 1994G - Minecraft
- 2104F - Numbers and Strings
- 1680F - Lenient Vertex Cover
- 1270F - Awesome Substrings
- 1278F - Cards
- 2119E - And Constraint
- 2045J - Xorderable Array
- 1987F2 - Interesting Problem (Hard Version)
- 1495D - BFS Trees
- 1227G - Not Same
- 1067C - Knights
- 1439B - Graph Subset Problem
- 1389F - Bicolored Segments
- 1599A - Weights
- 1704F - Colouring Game
- 1799G - Count Voting
- 1773D - Dominoes
- 1661F - Teleporters
- 1827C - Palindrome Partition
- 914G - Sum the Fibonacci
- 1326F1 - Wise Men (Easy Version)
- 1981E - Turtle and Intersected Segments
- 1430G - Yet Another DAG Problem
- 1503D - Flip the Cards
- 1975F - Set
- 1613F - Tree Coloring
- 940F - Machine Learning
- 1027G - X-mouse in the Campus
- 1696F - Tree Recovery
- 1990E2 - Catch the Mole(Hard Version)
- 1919E - Counting Prefixes
- 1439C - Greedy Shopping
- 1957F1 - Frequency Mismatch (Easy Version)
- 1858E2 - Rollbacks (Hard Version)
- 1685C - Bring Balance
- 925D - Aztec Catacombs
- 1406E - Deleting Numbers
- 1844F1 - Min Cost Permutation (Easy Version)
- 1301F - Super Jaber
- 1217F - Forced Online Queries Problem
- 1566F - Points Movement
- 1905F - Field Should Not Be Empty
- 1945H - GCD is Greater
- 1089I - Interval-Free Permutations
- 1889C2 - Doremy's Drying Plan (Hard Version)
- 1793F - Rebrending
- 1237F - Balanced Domino Placements
- 1554E - You
- 1523E - Crypto Lights
- 1140F - Extending Set of Points
- 1031E - Triple Flips
- 1823F - Random Walk
- 813D - Two Melodies
- 848C - Goodbye Souvenir
- 1446D1 - Frequency Problem (Easy Version)
- 2122E - Greedy Grid Counting
- 1906B - Button Pressing
- 919F - A Game With Numbers
- 2071E - LeaFall
- 1699E - Three Days Grace
- 955D - Scissors
- 1070L - Odd Federalization
- 1515F - Phoenix and Earthquake
- 1657F - Words on Tree
- 1209F - Koala and Notebook
- 2004F - Make a Palindrome
- 1500C - Matrix Sorting
- 1363F - Rotating Substrings
- 1416D - Graph and Queries
- 1004F - Sonya and Bitwise OR
- 1982F - Sorting Problem Again
- 811E - Vladik and Entertaining Flags
- 1805F1 - Survival of the Weakest (easy version)
- 883B - Berland Army
- 1510B - Button Lock
- 1051E - Vasya and Big Integers
- 2003E1 - Turtle and Inversions (Easy Version)
- 1739F - Keyboard Design
- 1778F - Maximizing Root
Bonus!! Not too short, not too long (2600)
- 1651E - Sum of Matchings
- 1684F - Diverse Segments
- 1090J - Two Prefixes
- 963C - Cutting Rectangle
- 2002F1 - Court Blue (Easy Version)
- 1375F - Integer Game
- 1380F - Strange Addition
- 2128E2 - Submedians (Hard Version)
- 1530F - Bingo
- 1400G - Mercenaries
- 2107E - Ain and Apple Tree
- 1700F - Puzzle
- 896C - Willem, Chtholly and Seniorious
- 1740F - Conditional Mix
- 1153F - Serval and Bonus Problem
- 818G - Four Melodies
- 2085F1 - Serval and Colorful Array (Easy Version)
- 1423L - Light switches
- 1539F - Strange Array
- 1391E - Pairs of Pairs
- 982E - Billiard
- 1218C - Jumping Transformers
- 1793E - Velepin and Marketing
- 2103E - Keep the Sum
- 1355F - Guess Divisors Count
- 1394C - Boboniu and String
- 1045J - Moonwalk challenge
- 1582G - Kuzya and Homework
- 917D - Stranger Trees
- 1373G - Pawns
- 1977E - Tensor
- 2129D - Permutation Blackhole
- 2053F - Earnest Matrix Complement
- 1312G - Autocompletion
- 1437F - Emotional Fishermen
- 1580B - Mathematics Curriculum
- 1178F2 - Long Colorful Strip
- 1863F - Divide, XOR, and Conquer
- 1614E - Divan and a Cottage
- 958F3 - Lightsabers (hard)
- 1575E - Eye-Pleasing City Park Tour
- 1061E - Politics
- 843C - Upgrading Tree
- 1107F - Vasya and Endless Credits
- 1773H - Hot and Cold
- 1835C - Twin Clusters
- 1267I - Intriguing Selection
- 1081F - Tricky Interactor
- 1821F - Timber
- 1437G - Death DBMS
- 1469F - Power Sockets
- 1354G - Find a Gift
- 1893D - Colorful Constructive
- 1111D - Destroy the Colony
- 875E - Delivery Club
- 1172C2 - Nauuo and Pictures (hard version)
- 1536F - Omkar and Akmar
- 1700E - Serega the Pirate
- 1592F1 - Alice and Recoloring 1
- 1599J - Bob's Beautiful Array
- 1185G2 - Playlist for Polycarp (hard version)
- 2109C3 - Hacking Numbers (Hard Version)
- 1762E - Tree Sum
- 1466G - Song of the Sirens
- 1949D - Funny or Scary?
- 1949J - Amanda the Amoeba
- 1091F - New Year and the Mallard Expedition
- 1765G - Guess the String
- 2103F - Maximize Nor
- 1380G - Circular Dungeon
- 1898F - Vova Escapes the Matrix
- 2006D - Iris and Adjacent Products
- 975E - Hag's Khashba
- 2022E2 - Billetes MX (Hard Version)
- 1679F - Formalism for Formalism
- 1110F - Nearest Leaf
- 1223F - Stack Exterminable Arrays
- 1264D1 - Beautiful Bracket Sequence (easy version)
- 1493F - Enchanted Matrix
- 1023F - Mobile Phone Network
- 1765C - Card Guessing
- 1681E - Labyrinth Adventures
- 1896F - Bracket Xoring
- 832E - Vasya and Shifts
- 1970D2 - Arithmancy (Medium)
- 1430F - Realistic Gameplay
- 1398G - Running Competition
- 814E - An unavoidable detour for home
- 2132G - Famous Choreographer
- 1425B - Blue and Red of Our Faculty!
- 1558D - Top-Notch Insertions
- 2108E - Spruce Dispute
- 809C - Find a car
- 1016F - Road Projects
2700
- 1182F - Maximum Sine
- 1671F - Permutation Counting
- 995E - Number Clicker
- 1270G - Subset with Zero Sum
- 938F - Erasing Substrings
- 1730E - Maximums and Minimums
- 1599G - Shortest path
- 958E3 - Guard Duty (hard)
- 1599I - Desert
- 1918G - Permutation of Given
- 2071F - Towering Arrays
- 1930F - Maximize the Difference
- 1641D - Two Arrays
- 2028F - Alice's Adventures in Addition
- 1521E - Nastia and a Beautiful Matrix
- 870F - Paths
- 1205D - Almost All
- 1202F - You Are Given Some Letters...
- 1473F - Strange Set
- 1942F - Farmer John's Favorite Function
- 961F - k-substrings
- 1019D - Large Triangle
- 1025F - Disjoint Triangles
- 1194G - Another Meme Problem
- 1260F - Colored Tree
- 827D - Best Edge Weight
- 1555F - Good Graph
- 985G - Team Players
- 1065G - Fibonacci Suffix
- 2025F - Choose Your Queries
- 1887D - Split
- 1849F - XOR Partition
- 2081C - Quaternary Matrix
- 901D - Weighting a Tree
- 1364E - X-OR
- 932F - Escape Through Leaf
- 1303G - Sum of Prefix Sums
- 1599F - Mars
- 982F - The Meeting Place Cannot Be Changed
- 1916H2 - Matrix Rank (Hard Version)
- 1916H1 - Matrix Rank (Easy Version)
- 1487G - String Counting
- 1924D - Balanced Subsequences
- 1146G - Zoning Restrictions
- 1730F - Almost Sorted
- 1366F - Jog Around The Graph
- 1672H - Zigu Zagu
- 1572C - Paint
- 1957F2 - Frequency Mismatch (Hard Version)
- 1720E - Misha and Paintings
- 1567F - One-Four Overload
- 1621F - Strange Instructions
- 933C - A Colourful Prospect
- 961G - Partitions
- 1634F - Fibonacci Additions
- 1814F - Communication Towers
- 1632E2 - Distance Tree (hard version)
- 1118F2 - Tree Cutting (Hard Version)
- 1867F - Most Different Tree
- 924E - Wardrobe
- 868E - Policeman and a Tree
- 1120B - Once in a casino
- 827E - Rusty String
- 1421E - Swedish Heroes
- 1515G - Phoenix and Odometers
- 1016G - Appropriate Team
- 1388E - Uncle Bogdan and Projections
- 1422E - Minlexes
- 2068H - Statues
- 1366G - Construct the String
- 1254D - Tree Queries
- 1728G - Illumination
- 2049F - MEX OR Mania
- 1574F - Occurrences
- 1408G - Clusterization Counting
- 1795G - Removal Sequences
- 2009G3 - Yunli's Subarray Queries (extreme version)
- 839E - Mother of Dragons
- 1148F - Foo Fighters
- 2040F - Number of Cubes
- 1799F - Halve or Subtract
- 1856E2 - PermuTree (hard version)
- 1553G - Common Divisor Graph
- 1000G - Two-Paths
- 995F - Cowmpany Cowmpensation
- 2003E2 - Turtle and Inversions (Hard Version)
- 1603F - October 18, 2017
- 1789F - Serval and Brain Power
- 1774F2 - Magician and Pigs (Hard Version)
- 1109E - Sasha and a Very Easy Test
- 1542E2 - Abnormal Permutation Pairs (hard version)
- 1313E - Concatenation with intersection
- 2026F - Bermart Ice Cream
- 1422F - Boring Queries
- 1817D - Toy Machine
- 1627F - Not Splitting
- 2077E - Another Folding Strip
- 1468L - Prime Divisors Selection
- 1461F - Mathematical Expression
- 906D - Power Tower
Bonus!! Not too short, not too long (2700)
- 1336E1 - Chiori and Doll Picking (easy version)
- 2013F1 - Game in Tree (Easy Version)
- 1207G - Indie Album
- 1514E - Baby Ehab's Hyper Apartment
- 1658F - Juju and Binary String
- 878C - Tournament
- 1450E - Capitalism
- 1411G - No Game No Life
- 1025E - Colored Cubes
- 2056F1 - Xor of Median (Easy Version)
- 1991G - Grid Reset
- 903G - Yet Another Maxflow Problem
- 1372F - Omkar and Modes
- 1995E1 - Let Me Teach You a Lesson (Easy Version)
- 958D2 - Hyperspace Jump (hard)
- 1601D - Difficult Mountain
- 1338D - Nested Rubber Bands
- 1264E - Beautiful League
- 1733E - Conveyor
- 1103C - Johnny Solving
- 1453F - Even Harder
- 991F - Concise and clear
- 1036G - Sources and Sinks
- 1179D - Fedor Runs for President
- 1792F1 - Graph Coloring (easy version)
- 1715F - Crop Squares
- 1682F - MCMF?
- 838D - Airplane Arrangements
- 1519E - Off by One
- 1540C1 - Converging Array (Easy Version)
- 833C - Ever-Hungry Krakozyabra
- 1295F - Good Contest
- 1379F1 - Chess Strikes Back (easy version)
- 1452G - Game On Tree
- 1781F - Bracket Insertion
- 1010E - Store
- 2115C - Gellyfish and Eternal Violet
- 1956E2 - Nene vs. Monsters (Hard Version)
- 1695E - Ambiguous Dominoes
- 1682E - Unordered Swaps
- 1369F - BareLee
- 1044F - DFS
- 1841F - Monocarp and a Strategic Game
- 1423F - Coins
- 1370F2 - The Hidden Pair (Hard Version)
- 1034C - Region Separation
- 1993E - Xor-Grid Problem
- 1458C - Latin Square
- 1358F - Tasty Cookie
- 1140G - Double Tree
- 1804F - Approximate Diameter
- 1149C - Tree Generator™
- 1220F - Gardener Alex
- 1511G - Chips on a Board
- 860E - Arkady and a Nobody-men
- 949E - Binary Cards
- 2104G - Modulo 3
- 1550F - Jumping Around
- 1137E - Train Car Selection
- 1750F - Majority
- 1423E - 5G Antenna Towers
- 1617E - Christmas Chocolates
- 1210E - Wojtek and Card Tricks
- 1451F - Nullify The Matrix
- 1292D - Chaotic V.
- 1510J - Japanese Game
- 1491F - Magnets
- 1156G - Optimizer
- 1510I - Is It Rated?
- 1997F - Chips on a Line
- 1197F - Coloring Game
- 2045E - Narrower Passageway
- 2032F - Peanuts
- 2043F - Nim
- 864F - Cities Excursions
- 989E - A Trance of Nightfall
- 1511F - Chainword
- 1801F - Another n-dimensional chocolate bar
- 1054F - Electric Scheme
- 1131G - Most Dangerous Shark
2800
- 908G - New Year and Original Order
- 1436F - Sum Over Subsets
- 1863G - Swaps
- 1746F - Kazaee
- 1442D - Sum
- 1208G - Polygons
- 1067E - Random Forest Rank
- 819E - Mister B and Flight to the Moon
- [problem:802F]
- 1031F - Familiar Operations
- 1039D - You Are Given a Tree
- 1609F - Interesting Sections
- 1012D - AB-Strings
- 1732E - Location
- 1693D - Decinc Dividing
- 1698F - Equal Reversal
- 1990F - Polygonal Segments
- 736D - Permutations
- 1620F - Bipartite Array
- 830D - Singer House
- 1672F2 - Checker for Array Shuffling
- 1697F - Too Many Constraints
- 1685D1 - Permutation Weight (Easy Version)
- 1383E - Strange Operation
- 983E - NN country
- 1635F - Closest Pair
- 2048G - Kevin and Matrices
- 1904F - Beautiful Tree
- 1852D - Miriany and Matchstick
- 1949K - Make Triangle
- 1088F - Ehab and a weird weight formula
- 1327G - Letters and Question Marks
- 1842G - Tenzing and Random Operations
- 1404E - Bricks
- 1404D - Game of Pairs
- 1684G - Euclid Guess
- 1967D - Long Way to be Non-decreasing
- 1626F - A Random Code Problem
- 1844F2 - Min Cost Permutation (Hard Version)
- 1491G - Switch and Flip
- 1943D2 - Counting Is Fun (Hard Version)
- 1365G - Secure Password
- 850F - Rainbow Balls
- 1608E - The Cells on the Paper
- 1310C - Au Pont Rouge
- 2003F - Turtle and Three Sequences
- 850D - Tournament Construction
- 1749F - Distance to the Path
- 1923F - Shrink-Reverse
- 838C - Future Failure
- 1830D - Mex Tree
- 1654F - Minimal String Xoration
- 722F - Cyclic Cipher
- 838F - Expected Earnings
- 1913F - Palindromic Problem
- 1826F - Fading into Fog
- 1303F - Number of Components
- 762F - Tree nesting
- 1510F - Fiber Shape
- 1400F - x-prime Substrings
- 1827D - Two Centroids
- 1606F - Tree Queries
- 1279F - New Year and Handle Change
- 842E - Nikita and game
- 1976F - Remove Bridges
- 2027E1 - Bit Game (Easy Version)
- 1783G - Weighed Tree Radius
- 1578A - Anti-Tetris
- 962G - Visible Black Areas
- 1082F - Speed Dial
- 1375G - Tree Modification
- 1389G - Directing Edges
- 2127F - Hamed and AghaBalaSar
- 2002F2 - Court Blue (Hard Version)
- 2069F - Graph Inclusion
- 1572D - Bridge Club
- 2021E3 - Digital Village (Extreme Version)
- 1152F1 - Neko Rules the Catniverse (Small Version)
- 1218A - BubbleReactor
- 2039F1 - Shohag Loves Counting (Easy Version)
- 869D - The Overdosing Ubiquity
- 1477D - Nezzar and Hidden Permutations
- 2124F2 - Appending Permutations (Hard Version)
- 1773G - Game of Questions
- 1935F - Andrey's Tree
- 1766F - MCF
- 1423M - Milutin's Plums
- 1845F - Swimmers in the Pool
- 1578B - Building Forest Trails
- 1879F - Last Man Standing
- 1866J - Jackets and Packets
- 1214H - Tiles Placement
- 1394D - Boboniu and Jianghu
- 887E - Little Brother
- 1942G - Bessie and Cards
- 815D - Karen and Cards
- 1808E3 - Minibuses on Venus (hard version)
- 2112F - Variables and Operations
- 1612F - Armor and Weapons
- 1721F - Matching Reduction
Bonus!! Not too short, not too long (2800)
- 1033E - Hidden Bipartite Graph
- 859F - Ordering T-Shirts
- 833D - Red-Black Cobweb
- 1906D - Spaceship Exploration
- 986E - Prince's Problem
- 1919F2 - Wine Factory (Hard Version)
- 1425I - Impressive Harvesting of The Orchard
- 1379E - Inverse Genealogy
- 1419F - Rain of Fire
- 2055E - Haystacks
- 2052G - Geometric Balance
- 1809G - Prediction
- 1379F2 - Chess Strikes Back (hard version)
- 1155F - Delivery Oligopoly
- 794F - Leha and security system
- 1776D - Teamwork
- 1884E - Hard Design
- 1413F - Roads and Ramen
- 1993F2 - Dyn-scripted Robot (Hard Version)
- 1592F2 - Alice and Recoloring 2
- 776F - Sherlock's bet to Moriarty
- 1383D - Rearrange
- 1578K - Kingdom of Islands
- 2097D - Homework
- 2038M - Royal Flush
- 702F - T-Shirts
- 1615F - LEGOndary Grandmaster
- 1874D - Jellyfish and Miku
- 1473G - Tiles
- 2107F2 - Cycling (Hard Version)
- 1810F - M-tree
- 2031F - Penchick and Even Medians
- 750F - New Year and Finding Roots
- 850E - Random Elections
- 794E - Choosing Carrot
- 1545C - AquaMoon and Permutations
- 2034F2 - Khayyam's Royal Decree (Hard Version)
- 1098D - Eels
- 1900F - Local Deletions
- 2113E - From Kazan with Love
- 1286C2 - Madhouse (Hard version)
- 1648D - Serious Business
- 717I - Cowboy Beblop at his computer
- 1633F - Perfect Matching
- 1371F - Raging Thunder
- 1316F - Battalion Strength
- 1109C - Sasha and a Patient Friend
- 1142D - Foreigner
2900
- 1285F - Classical?
- 1129D - Isolation
- 932G - Palindrome Partition
- 1768F - Wonderful Jump
- 1266F - Almost Same Distance
- 1487F - Ones
- [problem:802O]
- 1146H - Satanic Panic
- 871E - Restore the Tree
- 1677E - Tokitsukaze and Beautiful Subsegments
- 1810H - Last Number
- 1667D - Edge Elimination
- 1622F - Quadratic Set
- 1198F - GCD Groups 2
- 1553H - XOR and Distance
- 886F - Symmetric Projections
- 1773J - Jumbled Trees
- 980F - Cactus to Tree
- 1747E - List Generation
- 1616F - Tricolor Triangles
- 2062F - Traveling Salescat
- 1738G - Anti-Increasing Addicts
- 1310E - Strange Function
- 1580D - Subsequence
- 1796F - Strange Triples
- 741D - Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths
- 1028H - Make Square
- 1032G - Chattering
- 1705F - Mark and the Online Exam
- 1028F - Make Symmetrical
- 1870F - Lazy Numbers
- 1806F2 - GCD Master (hard version)
- 1806F1 - GCD Master (easy version)
- 1452F - Divide Powers
- 1221G - Graph And Numbers
- 1218H - Function Composition
- 1038F - Wrap Around
- 1372E - Omkar and Last Floor
- 1965D - Missing Subarray Sum
- 1030G - Linear Congruential Generator
- 1687D - Cute number
- 724E - Goods transportation
- 1060F - Shrinking Tree
- 1578F - Framing Pictures
- 1444D - Rectangular Polyline
- 1085G - Beautiful Matrix
- 1455G - Forbidden Value
- 878D - Magic Breeding
- 1605F - PalindORme
- 1334G - Substring Search
- 2115D - Gellyfish and Forget-Me-Not
- 1860F - Evaluate RBS
- 1735F - Pebbles and Beads
- 2042E - Vertex Pairs
- 1630E - Expected Components
- 938G - Shortest Path Queries
- 815E - Karen and Neighborhood
- 2020F - Count Leaves
- 1083C - Max Mex
- 2045K - GCDDCG
- 1428G1 - Lucky Numbers (Easy Version)
- 1276D - Tree Elimination
- 1479D - Odd Mineral Resource
- 718D - Andrew and Chemistry
- 1646F - Playing Around the Table
- 1949E - Damage per Second
- 960G - Bandit Blues
- 2111G - Divisible Subarrays
- 862F - Mahmoud and Ehab and the final stage
- 2018F1 - Speedbreaker Counting (Easy Version)
- 1494F - Delete The Edges
- 2134F - Permutation Oddness
- 2108F - Fallen Towers
- 1713F - Lost Array
- 1500D - Tiles for Bathroom
- 1698G - Long Binary String
- 1062F - Upgrading Cities
- 1415F - Cakes for Clones
- 2085F2 - Serval and Colorful Array (Hard Version)
- 736E - Chess Championship
- 1995E2 - Let Me Teach You a Lesson (Hard Version)
- 1654G - Snowy Mountain
- 933D - A Creative Cutout
- 930E - Coins Exhibition
- 2092F - Andryusha and CCB
- 776G - Sherlock and the Encrypted Data
- 896D - Nephren Runs a Cinema
- 763D - Timofey and a flat tree
- 1288F - Red-Blue Graph
- 1510C - Cactus Not Enough
- 1051G - Distinctification
- 1792F2 - Graph Coloring (hard version)
- 1055F - Tree and XOR
- 2084F - Skyscape
- 1906G - Grid Game 2
- 2061G - Kevin and Teams
- 1540C2 - Converging Array (Hard Version)
- 1764G1 - Doremy's Perfect DS Class (Easy Version)
- 809D - Hitchhiking in the Baltic States
- 2030G1 - The Destruction of the Universe (Easy Version)
Bonus!! Not too short, not too long (2900)
- 1562F - Tubular Bells
- 997D - Cycles in product
- 725F - Family Photos
- 717A - Festival Organization
- 848D - Shake It!
- 2046E1 - Cheops and a Contest (Easy Version)
- 1847E - Triangle Platinum?
- 917C - Pollywog
- 1601E - Phys Ed Online
- 1979F - Kostyanych's Theorem
- 1987G1 - Spinning Round (Easy Version)
- 1725D - Deducing Sortability
- 1264D2 - Beautiful Bracket Sequence (hard version)
- 2023D - Many Games
- 1575F - Finding Expected Value
- 1056G - Take Metro
- 1901F - Landscaping
- 1361D - Johnny and James
- 722E - Research Rover
- 2059E2 - Stop Gaming (Hard Version)
- 1392G - Omkar and Pies
- 819C - Mister B and Beacons on Field
- 819D - Mister B and Astronomers
- 1943E1 - MEX Game 2 (Easy Version)
- 1765J - Hero to Zero
- 2066D2 - Club of Young Aircraft Builders (hard version)
- 1172D - Nauuo and Portals
- 1835D - Doctor's Brown Hypothesis
- 763E - Timofey and our friends animals
- 1928F - Digital Patterns
- 1916F - Group Division
3000
- 889E - Mod Mod Mod
- 1418F - Equal Product
- 914F - Substrings in a String
- 1175G - Yet Another Partiton Problem
- 1824D - LuoTianyi and the Function
- 1616H - Keep XOR Low
- 1572E - Polygon
- 1909G - Pumping Lemma
- 1603D - Artistic Partition
- 1854E - Game Bundles
- 2043G - Problem with Queries
- 1442E - Black, White and Grey Tree
- 771E - Bear and Rectangle Strips
- 1667E - Centroid Probabilities
- 627E - Orchestra
- 618F - Double Knapsack
- 1983G - Your Loss
- 891E - Lust
- 1844G - Tree Weights
- 1476F - Lanterns
- 1988F - Heartbeat
- 1763F - Edge Queries
- 1842H - Tenzing and Random Real Numbers
- 2068K - Amusement Park Rides
- 1748F - Circular Xor Reversal
- 1178G - The Awesomest Vertex
- 1342F - Make It Ascending
- 1672I - PermutationForces
- 859G - Circle of Numbers
- 2086F - Online Palindrome
- 2125F - Timofey and Docker
- 1787G - Colorful Tree Again
- 2075F - Beautiful Sequence Returns
- 1797F - Li Hua and Path
- 1526F - Median Queries
- 1007C - Guess two numbers
- 1889D - Game of Stacks
- 698F - Coprime Permutation
- 1969F - Card Pairing
- 2133F - Flint and Steel
- 1097G - Vladislav and a Great Legend
- 1637G - Birthday
- 1743G - Antifibonacci Cut
- 1446D2 - Frequency Problem (Hard Version)
- 1535F - String Distance
- 997E - Good Subsegments
- 798E - Mike and code of a permutation
- 1975G - Zimpha Fan Club
- 1575C - Cyclic Sum
- 1934E - Weird LCM Operations
- 1438F - Olha and Igor
- 1428G2 - Lucky Numbers (Hard Version)
- 1252D - Find String in a Grid
- 1569F - Palindromic Hamiltonian Path
- 778E - Selling Numbers
- 1552G - A Serious Referee
- 1076G - Array Game
- 2129E - Induced Subgraph Queries
- 2018F2 - Speedbreaker Counting (Medium Version)
- 1152F2 - Neko Rules the Catniverse (Large Version)
- 1615H - Reindeer Games
- 603E - Pastoral Oddities
- 2062E2 - The Game (Hard Version)
- 1854D - Michael and Hotel
- 1299D - Around the World
- 1267G - Game Relics
- 2056F2 - Xor of Median (Hard Version)
- 1218G - Alpha planetary system
- 1019C - Sergey's problem
- 1508D - Swap Pass
- 641F - Little Artem and 2-SAT
- 1545D - AquaMoon and Wrong Coordinate
- 1981F - Turtle and Paths on a Tree
- 1610F - Mashtali: a Space Oddysey
- 1659F - Tree and Permutation Game
- 1147E - Rainbow Coins
- 1392H - ZS Shuffles Cards
- 739E - Gosha is hunting
- 2070F - Friends and Pizza
- 1609G - A Stroll Around the Matrix
- 2045L - Buggy DFS
- 1989F - Simultaneous Coloring
- 1651F - Tower Defense
- 1779G - The Game of the Century
- 1361E - James and the Chase
- 1474F - 1 2 3 4 ...
- 1776M - Parmigiana With Seafood
- 1764G2 - Doremy's Perfect DS Class (Medium Version)
- 2057G - Secret Message
- 1758F - Decent Division
- 852H - Bob and stages
- 1707D - Partial Virtual Trees
- 2029G - Balanced Problem
- 1423I - Lookup Tables
- 1956F - Nene and the Passing Game
- 1411F - The Thorny Path
- 1250D - Conference Problem
- 1874E - Jellyfish and Hack
- 2038H - Galactic Council
- 1838F - Stuck Conveyor
Bonus!! Not too short, not too long (3000)
- 1028G - Guess the number
- 1063E - Lasers and Mirrors
- 1381D - The Majestic Brown Tree Snake
- 1868D - Flower-like Pseudotree
- 2045F - Grid Game 3-angle
- 788D - Finding lines
- 2025G - Variable Damage
- 696E - ...Wait for it...
- 1218B - Guarding warehouses
- 1149D - Abandoning Roads
- 793F - Julia the snail
- 2120G - Eulerian Line Graph
- 666D - Chain Reaction
- 843E - Maximum Flow
- 2109F - Penguin Steps
- 856F - To Play or not to Play
- 1163F - Indecisive Taxi Fee
- 1181E2 - A Story of One Country (Hard)
- 1320E - Treeland and Viruses
- 773E - Blog Post Rating








Nice Work
Thanks!
UPD: Extended the problem list for 1600 to 3000 rating. Included some Bonus problems too!
The problems are sorted from shortest to longest statement. Only the problem description was counted — the input/output part and samples were ignored.
Thanks!
Nice work, man.
Thanks boss!
keep it up
Okay!
Really appreciate your work man!
Thanks
Great...
Thanks!
Jazakallahu Khair.
great job, do you want to make a new list for 1000, 1100, 1200 ...
Hopefully someday!
make it if possible :)
Love it!! great work man..
omg it's brainrotforces, tralalero tralala
My fav blog
Any plans for problems with long statements to enjoy reading novels while pretending to be working?
Try the YuNoOI series! Available on Luogu.Okay! Let's see
Thank you for this.
impressed by seeing ur hardwork keep going :)
Nice work tbh!
But how did u find all these problems?
Did u read each and every problem statement in it?
Great work 100/100
Thanks boss!
Thank you very much!!
Thank you hero! 1000/100
Welcome!
Boss Poss Koss, great work<<<<3
Thanks a lot!
thanks a lot
Welcome!
Thanks a lot!
how can i save this for later so i can return to it later ? Thanks a lot also !!!
Just bookmark the link. Also you can add this blog to favourites by pressing the "Star" button, which is located bside the voting options.
thank you. short = easy
i can now solve >2400 rated problems easily
Thank you, Abdullah!
Welcome!
Nice work! Abdullah.
Thanks bhai!
Could you please give us it for 1000-1400 rated problem. please.
Okay!
yeah do that please for us beginners
Could you please give us it for 1400-1500 rated problem. please.
As a student who secretly does Codeforces in the classroom, hiding from the teacher . this thing is a life saver ( salute emoji )
Yes!
Boss Boss
Do it for 1000-1500 too if possible for you!!
Wtf bro is no more! It shows user is disabled for me or everyone?
Bro was being too helpful, so they had to silence him.
lmao xD xD
Why did they ban him? It doesn't look like he was cheating
W
The exact thing i was looking for but it would be amazing if you add pupil and specialist ranges too :). Really appreciate your work.
Love it
glad to see im not the only one who hates reading statements.
Good job!
You are our liberator. What you have done here for us is a profound act of salvation, I can not thank you enough for this.