Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Please read
the new rule regarding the restriction on the use of AI tools
.
×
→ Pay attention
Before contest
Codeforces Round (Div. 2)
7 days
→ 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
498A
Crazy Town
geometry
1700
x6447
497E
Subsequences Return
dp
,
matrices
2900
x285
497D
Gears
brute force
,
geometry
,
math
2900
x228
496E
Distributing Parts
greedy
,
sortings
2100
x1656
496D
Tennis Game
binary search
1900
x3016
496C
Removing Columns
brute force
,
constructive algorithms
,
implementation
1500
x7739
496B
Secret Combination
brute force
,
constructive algorithms
,
implementation
1500
x5880
496A
Minimum Difficulty
brute force
,
implementation
,
math
900
x16405
495B
Modular Equations
math
,
number theory
1600
x6928
495A
Digital Counter
implementation
1100
x8464
494E
Sharti
data structures
,
games
3200
x316
494D
Birthday
data structures
,
dfs and similar
,
dp
,
trees
2700
x524
494C
Helping People
dp
,
probabilities
2600
x858
494B
Obsessive String
dp
,
strings
2000
x2701
494A
Treasure
greedy
1500
x6229
493E
Vasya and Polynomial
math
2800
x485
493D
Vasya and Chess
constructive algorithms
,
games
,
math
1700
x9668
493C
Vasya and Basketball
binary search
,
brute force
,
data structures
,
implementation
,
sortings
,
two pointers
1600
x6794
493B
Vasya and Wrestling
implementation
1400
x13318
493A
Vasya and Football
implementation
1300
x6110
492E
Vanya and Field
math
2000
x1626
492D
Vanya and Computer Game
binary search
,
implementation
,
math
,
sortings
1800
x3154
492C
Vanya and Exams
greedy
,
sortings
1400
x14046
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x75392
492A
Vanya and Cubes
implementation
800
x50114
491C
Deciphering
flows
,
graph matchings
2300
x410
491B
New York Hotel
greedy
,
math
2100
x555
491A
Up the hill
constructive algorithms
,
implementation
1000
x2930
490F
Treeland Tour
data structures
,
dfs and similar
,
dp
,
trees
2200
x1683
490E
Restoring Increasing Sequence
binary search
,
brute force
,
greedy
,
implementation
2000
x1596
490D
Chocolate
brute force
,
dfs and similar
,
math
,
meet-in-the-middle
,
number theory
1900
x2139
490C
Hacking Cypher
brute force
,
math
,
number theory
,
strings
1700
x9077
490B
Queue
dsu
,
implementation
1500
x5991
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x59168
489F
Special Matrices
combinatorics
,
dp
2100
x1668
489E
Hiking
binary search
,
dp
2300
x1029
489D
Unbearable Controversy of Being
brute force
,
combinatorics
,
dfs and similar
,
graphs
1700
x6675
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x46139
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x48835
489A
SwapSort
greedy
,
implementation
,
sortings
1200
x10048
488B
Candy Boxes
brute force
,
constructive algorithms
,
math
1900
x2120
488A
Giga Tower
brute force
1100
x14258
487E
Tourists
data structures
,
dfs and similar
,
graphs
,
trees
3200
x2334
487D
Conveyor Belts
data structures
2700
x892
487C
Prefix Product Sequence
constructive algorithms
,
math
,
number theory
2300
x2777
487B
Strip
binary search
,
data structures
,
dp
,
two pointers
2000
x3513
487A
Fight the Monster
binary search
,
brute force
,
implementation
1800
x3721
486E
LIS of Sequence
data structures
,
dp
,
greedy
,
hashing
,
math
2200
x2248
486D
Valid Sets
dfs and similar
,
dp
,
math
,
trees
2100
x3976
486C
Palindrome Transformation
brute force
,
greedy
,
implementation
1700
x11740
486B
OR in Matrix
greedy
,
hashing
,
implementation
1300
x17590
486A
Calculating Function
implementation
,
math
800
x117742
485B
Valuable Resources
brute force
,
greedy
1300
x6527
485A
Factory
implementation
,
math
,
matrices
1400
x8263
484E
Sign on Fence
binary search
,
constructive algorithms
,
data structures
2500
x2333
484D
Kindergarten
data structures
,
dp
,
greedy
2400
x2606
484C
Strange Sorting
implementation
,
math
2600
x592
484B
Maximum Value
binary search
,
math
,
sortings
,
two pointers
2100
x7032
484A
Bits
bitmasks
,
constructive algorithms
1700
x11298
483B
Friends and Presents
binary search
,
math
1800
x4074
483A
Counterexample
brute force
,
implementation
,
math
,
number theory
1100
x23020
482E
ELCA
data structures
,
trees
3200
x177
482D
Random Function and Tree
combinatorics
,
dp
,
trees
2700
x531
482C
Game with Strings
bitmasks
,
dp
,
probabilities
2600
x923
482B
Interesting Array
constructive algorithms
,
data structures
,
trees
1800
x6455
482A
Diverse Permutation
constructive algorithms
,
greedy
1200
x9637
480E
Parking Lot
data structures
,
divide and conquer
2800
x554
480D
Parcels
dp
,
graphs
2600
x460
479E
Riding in a Lift
combinatorics
,
dp
1900
x5120
479D
Long Jumps
binary search
,
greedy
,
implementation
1700
x4779
479C
Exams
greedy
,
sortings
1400
x29596
479B
Towers
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x7881
479A
Expression
brute force
,
math
1000
x93802
478E
Wavy numbers
brute force
,
dfs and similar
,
meet-in-the-middle
,
sortings
2900
x220
478D
Red-Green Towers
dp
2000
x5930
478C
Table Decorations
greedy
1800
x18211
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x36523
478A
Initial Bet
implementation
1100
x25639
477E
Dreamoon and Notepad
data structures
3100
x135
477D
Dreamoon and Binary
dp
,
strings
2700
x524
476E
Dreamoon and Strings
dp
,
strings
2200
x1969
476D
Dreamoon and Sets
constructive algorithms
,
greedy
,
math
1900
x4648
476C
Dreamoon and Sums
math
1600
x5737
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x30610
476A
Dreamoon and Stairs
implementation
,
math
1000
x43692
475F
Meta-universe
data structures
2900
x230
475E
Strongly Connected City 2
dfs and similar
2700
x412
475D
CGCDSSQ
brute force
,
data structures
,
math
2000
x4847
475C
Kamal-ol-molk's Painting
brute force
,
constructive algorithms
,
greedy
2100
x785
475B
Strongly Connected City
brute force
,
dfs and similar
,
graphs
,
implementation
1400
x8474
475A
Bayan Bus
implementation
1100
x4765
474F
Ant colony
data structures
,
math
,
number theory
2100
x8597
474E
Pillars
binary search
,
data structures
,
dp
,
sortings
,
trees
2000
x3310
474D
Flowers
dp
1700
x25244
474C
Captain Marmot
brute force
,
geometry
2000
x3117
474B
Worms
binary search
,
implementation
1200
x48193
474A
Keyboard
implementation
900
x45455
472G
Design Tutorial: Increase the Constraints
bitmasks
,
data structures
,
fft
2800
x402
472F
Design Tutorial: Change the Goal
constructive algorithms
,
math
,
matrices
2700
x256
472E
Design Tutorial: Learn from a Game
constructive algorithms
,
implementation
2800
x131
←
1
2
...
74
75
76
77
78
...
95
96
→
User lists
Name