Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
5 days
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
combine-tags-by-or
*combine tags by OR
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
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
1388B
Captain Flint and a Long Voyage
greedy
,
math
1000
x22335
1388A
Captain Flint and Crew Recruitment
brute force
,
greedy
,
math
,
number theory
800
x25017
1385C
Make It Good
greedy
1200
x27159
1385B
Restore the Permutation by Merger
greedy
800
x37364
1385A
Three Pairwise Maximums
math
800
x39491
1384A
Common Prefixes
constructive algorithms
,
greedy
,
strings
1200
x18856
1382B
Sequential Nim
dp
,
games
1100
x24757
1382A
Common Subsequence
brute force
800
x26593
1380A
Three Indices
brute force
,
data structures
900
x26387
1375B
Neighbor Grid
constructive algorithms
,
greedy
1200
x17320
1375A
Sign Flipping
constructive algorithms
,
math
1100
x18402
1374C
Move Brackets
greedy
,
strings
1000
x47798
1374B
Multiply by 2, divide by 6
math
900
x51548
1374A
Required Remainder
math
800
x54522
1373B
01 Game
games
900
x36661
1373A
Donut Shops
greedy
,
implementation
,
math
1000
x27228
1372A
Omkar and Completion
constructive algorithms
,
implementation
800
x32050
1371B
Magical Calendar
math
1200
x19207
1371A
Magical Sticks
math
800
x46489
1370B
GCD Compression
constructive algorithms
,
math
,
number theory
1100
x23811
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x53027
1369B
AccurateLee
greedy
,
implementation
,
strings
1200
x24540
1369A
FashionabLee
geometry
,
math
800
x36782
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x39952
1367B
Even Array
greedy
,
math
800
x54339
1367A
Short Substrings
implementation
,
strings
800
x58158
1366A
Shovels and Swords
binary search
,
greedy
,
math
1100
x30381
1365A
Matrix Game
games
,
greedy
,
implementation
1100
x24195
1364A
XXXXX
brute force
,
data structures
,
number theory
,
two pointers
1200
x28431
1363A
Odd Selection
brute force
,
implementation
,
math
1200
x36310
1362B
Johnny and His Hobbies
bitmasks
,
brute force
1200
x19322
1362A
Johnny and Ancient Computer
implementation
1000
x24526
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x33088
1360B
Honest Coach
greedy
,
sortings
800
x48379
1360A
Minimal Square
greedy
,
math
800
x51221
1359B
New Theatre Square
brute force
,
dp
,
greedy
,
implementation
,
two pointers
1000
x27928
1359A
Berland Poker
brute force
,
greedy
,
math
1000
x29828
1358B
Maria Breaks the Self-isolation
greedy
,
sortings
1000
x25002
1358A
Park Lighting
greedy
,
math
800
x39749
1355B
Young Explorers
dp
,
greedy
,
sortings
1200
x25886
1355A
Sequence with Digits
brute force
,
implementation
,
math
1200
x26788
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x31298
1354A
Alarm Clock
math
900
x23874
1353C
Board Moves
math
1000
x35711
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x50445
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x41219
1352C
K-th Not Divisible by n
binary search
,
math
1200
x55850
1352B
Same Parity Summands
constructive algorithms
,
math
1200
x38131
1352A
Sum of Round Numbers
implementation
,
math
800
x81404
1351B
Square?
brute force
,
implementation
,
math
900
x17122
1351A
A+B (Trial Problem)
implementation
800
x24256
1350A
Orac and Factors
math
900
x26150
1348A
Phoenix and Balance
greedy
,
math
800
x39801
1346A
Color Revolution
*special problem
,
math
1000
x2043
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x26641
1345A
Puzzle Pieces
math
800
x24253
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x38767
1343B
Balanced Array
constructive algorithms
,
math
800
x57182
1343A
Candies
brute force
,
math
900
x48397
1342B
Binary Period
constructive algorithms
,
strings
1100
x23770
1342A
Road To Zero
greedy
,
math
1000
x40996
1341A
Nastya and Rice
math
900
x29135
1339B
Sorted Adjacent Differences
constructive algorithms
,
sortings
1200
x26591
1339A
Filling Diamonds
brute force
,
dp
,
implementation
,
math
900
x32228
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x34458
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x38663
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x34972
1335B
Construct the String
constructive algorithms
900
x38762
1335A
Candies and Two Sisters
math
800
x86317
1334B
Middle Class
greedy
,
sortings
1100
x25977
1334A
Level Statistics
implementation
,
math
1200
x23371
1333B
Kind Anton
greedy
,
implementation
1100
x21659
1333A
Little Artem
constructive algorithms
1000
x24676
1332A
Exercising Walk
greedy
,
implementation
,
math
1100
x19441
1330A
Dreamoon and Ranking Collection
implementation
900
x18815
1328C
Ternary XOR
greedy
,
implementation
1200
x30678
1328A
Divisibility Problem
math
800
x104861
1327B
Princesses and Princes
brute force
,
graphs
,
greedy
1200
x18756
1327A
Sum of Odd Integers
math
1100
x39449
1326B
Maximums
implementation
,
math
900
x24138
1326A
Bad Ugly Numbers
constructive algorithms
,
number theory
1000
x30555
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x36242
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x40576
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x28158
1324B
Yet Another Palindrome Problem
brute force
,
strings
1100
x28660
1324A
Yet Another Tetris Problem
implementation
,
number theory
900
x26066
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19884
1321A
Contest for Robots
greedy
900
x14346
1316A
Grade Allocation
implementation
800
x18736
1315C
Restoring Permutation
greedy
1200
x10112
1315A
Dead Pixel
implementation
800
x12176
1313A
Fast Food Restaurant
brute force
,
greedy
,
implementation
900
x15570
1312B
Bogosort
constructive algorithms
,
sortings
1000
x27370
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x26058
1311B
WeirdSort
dfs and similar
,
sortings
1200
x18990
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x42375
1307A
Cow and Haybales
greedy
,
implementation
800
x15000
1305B
Kuroni and Simple Strings
constructive algorithms
,
greedy
,
strings
,
two pointers
1200
x11804
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x14141
1304B
Longest Palindrome
brute force
,
constructive algorithms
,
greedy
,
implementation
,
strings
1100
x17951
←
1
2
...
10
11
12
13
14
...
23
24
→
User lists
Name