Leaving the Bar

brute force, data structures, geometry, greedy, math, sortings

Suit and Tie

greedy, implementation, math

Knights of a Polygonal Table

greedy, implementation, sortings

Compute Power

binary search, dp, greedy

Concise and clear

brute force, greedy, implementation, math

Bishwock

dp, greedy

Getting an A

greedy, sortings

Flow Control

dfs and similar, dp, greedy, trees

Post Lamps

brute force, greedy

Micro-World

greedy, sortings

Divisibility by 25

brute force, greedy

Fair

graphs, greedy, number theory, shortest paths

Pencils and Boxes

binary search, data structures, dp, greedy, two pointers

Liebig's Barrels

greedy

Cut 'em all!

dfs and similar, dp, graphs, greedy, trees

Bus of Characters

data structures, greedy, implementation

Round Marriage

binary search, graph matchings, greedy

Bookshelves

bitmasks, dp, greedy

The Number Games

data structures, greedy, trees

Posterized

games, greedy

Kuro and GCD and XOR and SUM

binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees

Treasure Hunt

greedy

Petya's Exams

greedy, implementation, sortings

File Name

greedy, strings

Well played!

greedy, sortings

Nested Segments

greedy, implementation, sortings

Short Code

data structures, dp, greedy, strings, trees

Single-use Stones

binary search, flows, greedy, two pointers

Destruction of a Tree

constructive algorithms, dfs and similar, dp, greedy, trees

Byteland, Berland and Disputed Cities

constructive algorithms, greedy

Students in Railway Carriage

constructive algorithms, greedy, implementation

Subsequence Counting

bitmasks, constructive algorithms, greedy, implementation

Minimize the error

data structures, greedy, sortings

Mahmoud and Ehab and another array construction task

constructive algorithms, greedy, math, number theory

Mahmoud and Ehab and the message

dsu, greedy, implementation

Guard Duty (medium)

binary search, dp, greedy, sortings

Guard Duty (easy)

brute force, geometry, greedy, math

Maximum Control (medium)

data structures, dfs and similar, graphs, greedy, trees

Feed the cat

greedy, math

Castle Defense

binary search, data structures, greedy, two pointers

Water Taps

binary search, greedy, sortings

Intercepted Message

greedy, implementation

Curfew

binary search, brute force, greedy, sortings

Zebras

greedy

Largest Beautiful Number

greedy, implementation

String Transformation

greedy, strings

Partition

greedy

Cashback

data structures, dp, greedy, math

Our Tanya is Crying Out Loud

dp, greedy

Points on the line

brute force, greedy, sortings

Maximize!

binary search, greedy, ternary search, two pointers

Love Rescue

dfs and similar, dsu, graphs, greedy, strings

Erasing Substrings

bitmasks, dp, greedy

Run For Your Prize

brute force, greedy

World of Tank

dp, greedy

Fafa and Array

data structures, greedy

Friends Meeting

brute force, greedy, implementation, math

Прокат велосипедов

*special problem, greedy, implementation

Wardrobe

dp, greedy

Riverside Curio

data structures, dp, greedy

Three-level Laser

binary search, greedy, two pointers

Mystical Mosaic

greedy, implementation

Perfect Security

data structures, greedy, strings, trees

Divisibility

constructive algorithms, dp, greedy, number theory

Robot Vacuum Cleaner

greedy, sortings

Tanks

dp, greedy, implementation

Swap Adjacent Elements

dfs and similar, greedy, math, sortings, two pointers

Supermarket

brute force, greedy, implementation

The Monster

dp, greedy, implementation, math

Jamie and Binary Sequence (changed after round)

bitmasks, greedy, math

Permute Digits

dp, greedy

Conan and Agasa play a Card Game

games, greedy, implementation

Too Easy Problems

binary search, brute force, data structures, greedy, sortings

Party Lemonade

bitmasks, dp, greedy

Fishes

data structures, graphs, greedy, probabilities, shortest paths

Perun, Ult!

brute force, greedy, sortings

Tree Destruction

constructive algorithms, dfs and similar, graphs, greedy, trees

Stack Sorting

constructive algorithms, data structures, greedy, implementation

Minimum Sum

constructive algorithms, greedy, math

Door Frames

greedy, implementation

The Way to Home

dfs and similar, dp, greedy, implementation

Coprocessor

dfs and similar, dp, graphs, greedy

Colorful Points

data structures, greedy, implementation

Generate Login

brute force, greedy, sortings

New Year and Rainbow Roads

graphs, greedy, implementation

Boxes Packing

greedy

The Modcrab

greedy, implementation

Hungry Student Problem

greedy, implementation

Coloring a Tree

dfs and similar, dsu, greedy

Visiting a Friend

greedy, implementation

Splitting in Teams

constructive algorithms, greedy, math

Squares and not squares

constructive algorithms, greedy

Alarm Clock

greedy

Ithea Plays With Chtholly

binary search, constructive algorithms, games, greedy, interactive

Credit Card

data structures, dp, greedy, implementation

Rumor

dfs and similar, graphs, greedy

Wrath

greedy, implementation, two pointers

Greed

greedy, implementation

Gluttony

constructive algorithms, greedy

Pride

brute force, dp, greedy, math, number theory