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
1195D2
Submarine in the Rybinsk Sea (hard edition)
combinatorics
,
math
,
number theory
1800
x4675
1195D1
Submarine in the Rybinsk Sea (easy edition)
combinatorics
,
math
,
number theory
1500
x7906
1195C
Basketball Exercise
dp
1400
x26544
1194D
1-2-K Game
games
,
math
1700
x6604
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6470
1190A
Tokitsukaze and Discard Items
implementation
,
two pointers
1400
x9397
1189C
Candies!
data structures
,
dp
,
implementation
,
math
1400
x10624
1188A1
Add on a Tree
trees
1600
x8449
1187C
Vasya And Array
constructive algorithms
,
greedy
,
implementation
1800
x6382
1186D
Vus the Cossack and Numbers
constructive algorithms
,
greedy
,
math
1500
x8970
1186C
Vus the Cossack and Strings
implementation
,
math
1800
x6141
1185D
Extra Element
implementation
,
math
1700
x6747
1185C2
Exam in BerSU (hard version)
brute force
,
data structures
,
greedy
,
math
1700
x7482
1184D1
Parallel Universes (Easy)
implementation
1600
x2548
1184C1
Heidi and the Turing Test (Easy)
implementation
1600
x2302
1184B1
The Doctor Meets Vader (Easy)
binary search
,
sortings
1400
x5440
1183D
Candy Box (easy version)
greedy
,
sortings
1400
x14623
1183C
Computer Game
binary search
,
math
1400
x14065
1182C
Beautiful Lyrics
data structures
,
greedy
,
strings
1700
x4428
1181B
Split a Number
greedy
,
implementation
,
strings
1500
x6329
1180B
Nick and Array
greedy
,
implementation
1500
x9596
1179B
Tolik and His Uncle
constructive algorithms
1800
x4393
1179A
Valeriy and Deque
data structures
,
implementation
1500
x10666
1178D
Prime Graph
constructive algorithms
,
greedy
,
math
,
number theory
1500
x7435
1177B
Digits Sequence (Hard Edition)
binary search
,
divide and conquer
,
implementation
1800
x2596
1176E
Cover it!
dfs and similar
,
dsu
,
graphs
,
shortest paths
,
trees
1700
x11298
1176D
Recover it!
dfs and similar
,
graphs
,
greedy
,
number theory
,
sortings
1800
x5314
1175C
Electrification
binary search
,
brute force
,
greedy
1600
x6842
1175B
Catch Overflow!
data structures
,
expression parsing
,
implementation
1600
x10780
1172A
Nauuo and Cards
greedy
,
implementation
1800
x5000
1169B
Pairs
graphs
,
implementation
1500
x9832
1168A
Increasing by Modulo
binary search
,
greedy
1700
x6900
1167D
Bicolored RBS
constructive algorithms
,
greedy
1500
x6986
1167C
News Distribution
dfs and similar
,
dsu
,
graphs
1400
x18863
1167B
Lost Numbers
brute force
,
divide and conquer
,
interactive
,
math
1400
x11896
1166C
A Tale of Two Lands
binary search
,
sortings
,
two pointers
1500
x9681
1165E
Two Arrays and Sum of Functions
greedy
,
math
,
sortings
1600
x8420
1165D
Almost All Divisors
math
,
number theory
1600
x16307
1163B2
Cat Party (Hard Edition)
data structures
,
implementation
1600
x7269
1163B1
Cat Party (Easy Edition)
data structures
,
implementation
1500
x7011
1162B
Double Matrix
brute force
,
greedy
1400
x5818
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x7217
1157E
Minimum Array
binary search
,
data structures
,
greedy
1700
x8457
1157C2
Increasing Subsequence (hard version)
greedy
1700
x8074
1156B
Ugly Pairs
dfs and similar
,
greedy
,
implementation
,
sortings
,
strings
1800
x6243
1156A
Inscribed Figures
geometry
1400
x8235
1154E
Two Teams
data structures
,
implementation
,
sortings
1800
x6359
1154D
Walking Robot
greedy
1500
x10012
1154C
Gourmet Cat
implementation
,
math
1400
x10450
1153C
Serval and Parenthesis Sequence
greedy
,
strings
1700
x7436
1152C
Neko does Maths
brute force
,
math
,
number theory
1800
x6720
1151D
Stas and the Queue at the Buffet
greedy
,
math
,
sortings
1600
x8472
1151C
Problem for Nazar
constructive algorithms
,
math
1800
x5368
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x11328
1148D
Dirty Deeds Done Dirt Cheap
greedy
,
sortings
1800
x5002
1148C
Crazy Diamond
constructive algorithms
,
sortings
1700
x5320
1148B
Born This Way
binary search
,
brute force
,
two pointers
1600
x7521
1147A
Hide and Seek
graphs
1500
x5268
1146C
Tree Diameter
bitmasks
,
graphs
,
interactive
1700
x3710
1144F
Graph Without Long Directed Paths
dfs and similar
,
graphs
1700
x11788
1144D
Equalize Them All
constructive algorithms
,
greedy
1400
x10344
1143C
Queen
dfs and similar
,
trees
1400
x12728
1142A
The Beatles
brute force
,
math
1700
x3429
1141E
Superhero Battle
math
1700
x6794
1141D
Colored Boots
greedy
,
implementation
1500
x8590
1141C
Polycarp Restores Permutation
math
1500
x11549
1140C
Playlist
brute force
,
data structures
,
sortings
1600
x9629
1139C
Edgy Trees
dfs and similar
,
dsu
,
graphs
,
math
,
trees
1500
x12776
1138B
Circus
brute force
,
greedy
,
math
,
strings
1800
x4038
1137B
Camp Schedule
greedy
,
hashing
,
strings
1600
x6194
1137A
Skyscrapers
implementation
,
sortings
1600
x4484
1136D
Nastya Is Buying Lunch
greedy
1800
x3832
1136C
Nastya Is Transposing Matrices
constructive algorithms
,
sortings
1500
x7734
1133F1
Spanning Tree with Maximum Degree
graphs
1600
x7899
1133E
K Balanced Teams
dp
,
sortings
,
two pointers
1800
x5575
1133D
Zero Quantity Maximization
hashing
,
math
,
number theory
1500
x12185
1132C
Painting the Fence
brute force
1700
x5449
1131F
Asya And Kittens
constructive algorithms
,
dsu
1700
x6712
1131B
Draw!
greedy
,
implementation
1400
x9756
1130C
Connect
brute force
,
dfs and similar
,
dsu
1400
x8664
1129A2
Toy Train
brute force
,
greedy
1800
x4112
1129A1
Toy Train (Simplified)
brute force
,
greedy
1700
x3833
1121C
System Testing
implementation
1600
x2001
1119D
Frets On Fire
binary search
,
sortings
1800
x4869
1119C
Ramesses and Corner Inversion
constructive algorithms
,
greedy
,
implementation
,
math
1500
x6860
1118F1
Tree Cutting (Easy Version)
dfs and similar
,
trees
1800
x6003
1118E
Yet Another Ball Problem
constructive algorithms
,
implementation
1700
x4222
1118D2
Coffee and Coursework (Hard Version)
binary search
,
greedy
1700
x6347
1118D1
Coffee and Coursework (Easy version)
brute force
,
greedy
1700
x5703
1118C
Palindromic Matrix
constructive algorithms
,
implementation
1700
x5796
1115U3
Block unitary
*special problem
1700
x197
1115U2
Chessboard unitary
*special problem
1600
x234
1115U1
Anti-diagonal unitary
*special problem
1500
x256
1115G3
Palindrome checker oracle
*special problem
1600
x231
1115G2
OR oracle
*special problem
1600
x312
1114C
Trailing Loves (or L'oeufs?)
brute force
,
implementation
,
math
,
number theory
1700
x7433
1114B
Yet Another Array Partitioning Task
constructive algorithms
,
greedy
,
sortings
1500
x9002
1111C
Creative Snap
binary search
,
brute force
,
divide and conquer
,
math
1700
x6292
1111B
Average Superhero Gang Power
brute force
,
implementation
,
math
1700
x6304
1110C
Meaningless Operations
constructive algorithms
,
math
,
number theory
1500
x9429
←
1
2
...
8
9
10
11
12
...
22
23
→
User lists
Name