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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
5 days
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2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Status
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Custom test
Problems
#
Name
2039A
Shohag Loves Mod
constructive algorithms
,
number theory
800
x11071
2038N
Fixing the Expression
implementation
800
x6251
2038J
Waiting for...
greedy
,
implementation
800
x4720
2037B
Intercepted Inputs
brute force
,
implementation
800
x17620
2037A
Twice
implementation
800
x22798
2036B
Startup
greedy
,
sortings
800
x22914
2036A
Quintomania
implementation
800
x30395
2035B
Everyone Loves Tres
constructive algorithms
,
greedy
,
math
,
number theory
900
x14656
2035A
Sliding
implementation
,
math
800
x14821
2033B
Sakurako and Water
brute force
,
constructive algorithms
,
greedy
900
x22918
2033A
Sakurako and Kosuke
constructive algorithms
,
implementation
,
math
800
x32848
2032A
Circuit
greedy
,
implementation
,
math
,
number theory
800
x20257
2031B
Penchick and Satay Sticks
brute force
,
greedy
,
sortings
900
x13535
2031A
Penchick and Modern Monument
constructive algorithms
,
dp
,
greedy
,
math
800
x14740
2030B
Minimise Oneness
combinatorics
,
constructive algorithms
,
games
,
math
800
x20038
2030A
A Gift From Orangutan
constructive algorithms
,
greedy
,
math
,
sortings
800
x23413
2029A
Set
greedy
,
math
800
x10935
2028A
Alice's Adventures in ''Chess''
brute force
,
implementation
,
math
900
x13802
2027A
Rectangle Arrangement
geometry
,
implementation
,
math
800
x18541
2026A
Perpendicular Segments
constructive algorithms
,
geometry
,
greedy
,
math
900
x15900
2025A
Two Screens
binary search
,
greedy
,
strings
,
two pointers
800
x23453
2024A
Profitable Interest Rate
greedy
,
math
800
x18814
2022A
Bus to Pénjamo
constructive algorithms
,
greedy
,
implementation
,
math
800
x13740
2021A
Meaning Mean
data structures
,
greedy
,
math
,
sortings
800
x18568
2020A
Find Minimum Operations
bitmasks
,
brute force
,
greedy
,
math
,
number theory
800
x21866
2019A
Max Plus Size
brute force
,
dp
,
greedy
800
x22841
2014B
Robin Hood and the Major Oak
math
800
x28257
2014A
Robin Helps
greedy
,
implementation
800
x37018
2013B
Battle for Survive
constructive algorithms
,
greedy
,
math
900
x22961
2013A
Zhan's Blender
constructive algorithms
,
math
800
x27104
2010B
Three Brothers
brute force
,
implementation
,
math
800
x19888
2010A
Alternating Sum of Numbers
brute force
,
implementation
,
math
800
x16807
2009B
osu!mania
brute force
,
implementation
800
x41853
2009A
Minimize!
brute force
,
math
800
x51571
2008C
Longest Good Array
binary search
,
brute force
,
math
800
x30351
2008B
Square or Not
brute force
,
math
,
strings
800
x28517
2008A
Sakurako's Exam
brute force
,
constructive algorithms
,
greedy
,
math
800
x35208
2007B
Index and Maximum Value
data structures
,
greedy
900
x21199
2007A
Dora's Set
greedy
,
math
,
number theory
800
x22650
2005A
Simple Palindrome
combinatorics
,
constructive algorithms
,
greedy
,
math
900
x21667
2004A
Closest Point
implementation
,
math
800
x30293
2003B
Turtle and Piggy Are Playing a Game 2
games
,
greedy
,
sortings
800
x25128
2003A
Turtle and Good Strings
greedy
,
strings
800
x28959
2002A
Distanced Coloring
constructive algorithms
,
implementation
,
math
800
x19465
2001B
Generate Permutation
constructive algorithms
800
x24025
2001A
Make All Equal
greedy
,
implementation
800
x29567
2000B
Seating in a Bus
two pointers
800
x33825
2000A
Primary Task
implementation
,
math
,
strings
800
x37371
1999C
Showering
greedy
,
implementation
800
x35143
1999A
A+B Again?
implementation
,
math
800
x56324
1998A
Find K Distinct Points with Fixed Center
constructive algorithms
,
implementation
,
math
800
x23966
1997A
Strong Password
brute force
,
implementation
,
strings
800
x29274
1996B
Scale
greedy
,
implementation
800
x32631
1996A
Legs
binary search
,
math
,
ternary search
800
x43383
1995A
Diagonals
brute force
,
greedy
,
implementation
,
math
800
x24266
1994A
Diverse Game
constructive algorithms
,
greedy
,
implementation
800
x20271
1993A
Question Marks
greedy
,
implementation
800
x29459
1992C
Gorilla and Permutation
constructive algorithms
,
math
900
x29181
1992B
Angry Monk
greedy
,
math
,
sortings
800
x34342
1992A
Only Pluses
brute force
,
constructive algorithms
,
greedy
,
math
,
sortings
800
x41445
1991A
Maximize the Last Element
greedy
,
implementation
800
x21894
1990A
Submission Bait
brute force
,
games
,
greedy
,
sortings
900
x22769
1989A
Catch the Coin
implementation
800
x26423
1988B
Make Majority
greedy
,
implementation
900
x22839
1988A
Split the Multiset
brute force
,
greedy
,
implementation
,
math
900
x23305
1987A
Upload More RAM
greedy
,
math
800
x25421
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x40683
1985D
Manhattan Circle
implementation
,
math
900
x34744
1985B
Maximum Multiple Sum
brute force
,
math
,
number theory
800
x46584
1985A
Creating Words
implementation
,
strings
800
x54277
1984A
Strange Splitting
constructive algorithms
800
x21201
1983A
Array Divisibility
constructive algorithms
,
math
800
x25735
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x25210
1981A
Turtle and Piggy Are Playing a Game
brute force
,
greedy
,
math
800
x22371
1980B
Choosing Cubes
sortings
,
sortings
800
x34795
1980A
Problem Generator
math
800
x40800
1979A
Guess the Maximum
brute force
,
greedy
,
implementation
800
x29115
1978B
New Bakery
binary search
,
greedy
,
math
,
ternary search
800
x22433
1978A
Alice and Books
constructive algorithms
,
greedy
,
sortings
800
x25803
1977A
Little Nikita
math
800
x33230
1976A
Verify Password
implementation
,
sortings
,
strings
800
x28696
1975A
Bazoka and Mocha's Array
brute force
,
greedy
,
implementation
,
sortings
800
x18564
1974B
Symmetric Encoding
implementation
,
sortings
,
strings
800
x30376
1974A
Phone Desktop
greedy
,
math
800
x33333
1973A
Chess For Three
brute force
,
dp
,
implementation
,
math
900
x24664
1972B
Coin Games
games
900
x21720
1972A
Contest Proposal
brute force
,
greedy
,
two pointers
800
x23022
1971C
Clock and Strings
implementation
900
x33348
1971B
Different String
implementation
,
strings
800
x37141
1971A
My First Sorting Problem
implementation
,
sortings
800
x45732
1969A
Two Friends
constructive algorithms
,
implementation
,
math
800
x20024
1968B
Prefiquence
greedy
,
two pointers
800
x28033
1968A
Maximize?
brute force
,
math
,
number theory
800
x34766
1966A
Card Exchange
constructive algorithms
,
games
,
greedy
800
x17943
1957A
Stickogon
constructive algorithms
,
greedy
800
x23410
1956B
Nene and the Card Game
games
,
greedy
800
x21319
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x21787
1955A
Yogurt Sale
math
800
x43865
1954A
Painting the Ribbon
constructive algorithms
,
greedy
,
math
900
x24293
1951A
Dual Trigger
constructive algorithms
,
greedy
,
math
900
x19848
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