Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
6 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
705B
Spider Man
games
,
math
1100
x9178
705A
Hulk
implementation
800
x108443
704E
Iron Man
data structures
,
geometry
,
trees
3300
x283
704D
Captain America
flows
,
greedy
3100
x794
704C
Black Widow
dp
,
graphs
,
implementation
,
math
2900
x464
704B
Ant Man
dp
,
graphs
,
greedy
2500
x1880
704A
Thor
brute force
,
data structures
,
implementation
1600
x9346
703E
Mishka and Divisors
dp
,
number theory
2600
x601
703D
Mishka and Interesting sum
data structures
2100
x3637
703C
Chris and Road
geometry
,
implementation
2100
x1862
703B
Mishka and trip
implementation
,
math
1400
x5688
703A
Mishka and Game
implementation
800
x57288
702F
T-Shirts
data structures
2800
x1425
702E
Analysis of Pathes in Functional Graph
data structures
,
graphs
2100
x2617
702D
Road to Post Office
math
1900
x3376
702C
Cellular Network
binary search
,
implementation
,
two pointers
1500
x15355
702B
Powers of Two
brute force
,
data structures
,
implementation
,
math
1500
x11991
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x45596
701C
They Are Everywhere
binary search
,
strings
,
two pointers
1500
x15349
701B
Cells Not Under Attack
data structures
,
math
1200
x11793
701A
Cards
greedy
,
implementation
800
x19690
700E
Cool Slogans
string suffix structures
,
strings
3300
x1189
700D
Huffman Coding on Segment
data structures
,
greedy
3100
x462
700C
Break Up
dfs and similar
,
graphs
2600
x1307
700B
Connecting Universities
dfs and similar
,
dp
,
graphs
,
trees
1800
x4020
700A
As Fast As Possible
binary search
,
math
1900
x3200
699B
One Bomb
implementation
1400
x7614
699A
Launch of Collider
implementation
1000
x16037
698F
Coprime Permutation
combinatorics
,
number theory
3000
x438
698E
Cron
2800
x118
698D
Limak and Shooting Points
brute force
,
geometry
,
math
2600
x542
698C
LRU
bitmasks
,
dp
,
math
,
probabilities
2400
x1333
698B
Fix a Tree
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
trees
1700
x5760
698A
Vacations
dp
1400
x30797
697B
Barnicle
brute force
,
implementation
,
math
,
strings
1400
x5760
697A
Pineapple Incident
implementation
,
math
900
x12828
696F
...Dary!
binary search
,
geometry
,
two pointers
3300
x124
696E
...Wait for it...
data structures
,
dsu
,
trees
3000
x559
696D
Legen...
data structures
,
dp
,
matrices
,
strings
2500
x1313
696C
PLEASE
combinatorics
,
dp
,
implementation
,
math
,
matrices
2000
x2087
696B
Puzzles
dfs and similar
,
math
,
probabilities
,
trees
1700
x3526
696A
Lorenzo Von Matterhorn
brute force
,
data structures
,
implementation
,
trees
1500
x6124
691F
Couple Cover
brute force
,
dp
,
number theory
2200
x1308
691E
Xor-sequences
matrices
1900
x2560
691D
Swaps in Permutation
dfs and similar
,
dsu
,
math
1700
x5559
691C
Exponential notation
implementation
,
strings
1800
x2615
691B
s-palindrome
implementation
,
strings
1600
x7446
691A
Fashion in Berland
implementation
1000
x10234
690F3
Tree of Life (hard)
trees
3200
x53
690F2
Tree of Life (medium)
constructive algorithms
,
hashing
,
trees
2700
x84
690F1
Tree of Life (easy)
1300
x2173
690E2
Photographs (II)
2600
x142
690E1
Photographs (I)
1800
x677
690D3
The Wall (hard)
dp
2100
x523
690D2
The Wall (medium)
combinatorics
1800
x1249
690D1
The Wall (easy)
1200
x2624
690C3
Brain Network (hard)
trees
2200
x912
690C2
Brain Network (medium)
dfs and similar
,
graphs
,
trees
1500
x3822
690C1
Brain Network (easy)
1300
x2780
690B3
Recover Polygon (hard)
data structures
2600
x93
690B2
Recover Polygon (medium)
geometry
2600
x204
690B1
Recover Polygon (easy)
1700
x941
690A3
Collective Mindsets (hard)
2400
x552
690A2
Collective Mindsets (medium)
2300
x710
690A1
Collective Mindsets (easy)
1100
x2879
689E
Mike and Geometry Problem
combinatorics
,
data structures
,
dp
,
geometry
,
implementation
2000
x1942
689D
Friends and Subsequences
binary search
,
data structures
2100
x3490
689C
Mike and Chocolate Thieves
binary search
,
combinatorics
,
math
1700
x5394
689B
Mike and Shortcuts
dfs and similar
,
graphs
,
greedy
,
shortest paths
1600
x6022
689A
Mike and Cellphone
brute force
,
constructive algorithms
,
implementation
1400
x5274
688B
Lovely Palindromes
constructive algorithms
,
math
1000
x32436
688A
Opponents
implementation
800
x14026
687E
TOF
dfs and similar
,
graphs
2900
x322
687D
Dividing Kingdom II
brute force
,
data structures
,
dsu
,
graphs
,
sortings
2500
x963
687C
The Values You Can Make
dp
1900
x5649
687B
Remainders Game
chinese remainder theorem
,
math
,
number theory
1800
x5951
687A
NP-Hard Problem
dfs and similar
,
graphs
1500
x14473
686B
Little Robber Girl's Zoo
constructive algorithms
,
implementation
,
sortings
1100
x7807
686A
Free Ice Cream
constructive algorithms
,
implementation
800
x37985
685E
Travelling Through the Snow Queen's Kingdom
bitmasks
,
brute force
,
divide and conquer
,
graphs
2800
x557
685D
Kay and Eternity
brute force
,
implementation
,
sortings
2600
x485
685C
Optimal Point
binary search
,
math
2900
x585
685B
Kay and Snowflake
data structures
,
dfs and similar
,
dp
,
trees
1900
x4169
685A
Robbers' watch
brute force
,
combinatorics
,
dp
,
math
1700
x4253
683J
The Hero with Bombs
*special problem
3000
x40
683I
Loader
*special problem
,
graphs
2500
x38
683H
Exchange of Books
*special problem
1900
x95
683G
The Fraction
*special problem
1900
x130
683F
Reformat the String
*special problem
1800
x146
683E
Hammer throwing
*special problem
1800
x188
683D
Chocolate Bar
*special problem
,
math
1400
x323
683C
Symmetric Difference
*special problem
1600
x322
683B
The Teacher of Physical Education
*special problem
1600
x317
683A
The Check of the Point
*special problem
,
geometry
1200
x799
682E
Alyona and Triangles
geometry
,
two pointers
2600
x669
682D
Alyona and Strings
dp
,
strings
1900
x3337
682C
Alyona and the Tree
dfs and similar
,
dp
,
graphs
,
trees
1600
x7288
682B
Alyona and Mex
sortings
1200
x11569
682A
Alyona and Numbers
constructive algorithms
,
math
,
number theory
1100
x21859
681E
Runaway to a Shadow
geometry
,
sortings
2500
x472
←
1
2
...
69
70
71
72
73
...
99
100
→
User lists
Name