Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
2 weeks
Register now »
Before contest
Kotlin Heroes: Practice 10
16:10:08
Register now »
→ Filter Problems
Difficulty:
—
implementation
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
228B
Two Tables
brute force
,
implementation
1400
x3430
1921F
Sum of Progression
brute force
,
data structures
,
dp
,
implementation
,
math
1900
x3427
1819B
The Butcher
geometry
,
greedy
,
implementation
,
sortings
,
two pointers
1900
x3427
917A
The Monster
dp
,
greedy
,
implementation
,
math
1800
x3424
581D
Three Logos
bitmasks
,
brute force
,
constructive algorithms
,
geometry
,
implementation
,
math
1700
x3421
666A
Reberland Linguistics
dp
,
implementation
,
strings
1800
x3415
1266D
Decreasing Debts
constructive algorithms
,
data structures
,
graphs
,
greedy
,
implementation
,
math
,
two pointers
2000
x3409
1950G
Shuffling Songs
bitmasks
,
dfs and similar
,
dp
,
graphs
,
hashing
,
implementation
,
strings
1900
x3403
38B
Chess
brute force
,
implementation
,
math
1200
x3389
1361B
Johnny and Grandmaster
greedy
,
implementation
,
math
,
sortings
1900
x3387
818D
Multicolored Cars
data structures
,
implementation
1700
x3383
160C
Find Pair
implementation
,
math
,
sortings
1700
x3380
1427D
Unshuffling a Deck
constructive algorithms
,
implementation
2000
x3365
645A
Amity Assessment
brute force
,
constructive algorithms
,
implementation
1200
x3356
1663B
Mike's Sequence
*special problem
,
divide and conquer
,
implementation
,
math
x3354
1955G
GCD on a grid
brute force
,
dfs and similar
,
dp
,
implementation
,
math
,
number theory
1900
x3342
120B
Quiz League
implementation
1100
x3339
55A
Flea travel
implementation
,
math
1200
x3336
1437E
Make It Increasing
binary search
,
constructive algorithms
,
data structures
,
dp
,
implementation
2200
x3323
958B1
Maximum Control (easy)
implementation
1000
x3314
959E
Mahmoud and Ehab and the xor-MST
bitmasks
,
dp
,
graphs
,
implementation
,
math
1900
x3303
451C
Predict Outcome of the Game
brute force
,
implementation
,
math
1700
x3299
847A
Union of Doubly Linked Lists
implementation
1500
x3298
931C
Laboratory Work
implementation
,
math
1700
x3290
839B
Game of the Rows
brute force
,
greedy
,
implementation
1900
x3258
1787D
Game on Axis
combinatorics
,
dfs and similar
,
dsu
,
graphs
,
implementation
1900
x3257
1943B
Non-Palindromic Substring
hashing
,
implementation
,
math
,
strings
2000
x3246
550D
Regular Bridge
constructive algorithms
,
graphs
,
implementation
1900
x3242
245E
Mishap in Club
greedy
,
implementation
1400
x3223
75B
Facetook Priority Wall
expression parsing
,
implementation
,
strings
1500
x3211
1316D
Nash Matrix
constructive algorithms
,
dfs and similar
,
graphs
,
implementation
2000
x3206
811C
Vladik and Memorable Trip
dp
,
implementation
1900
x3204
44C
Holidays
implementation
1300
x3204
708B
Recover the String
constructive algorithms
,
greedy
,
implementation
,
math
1900
x3195
1175E
Minimal Segment Cover
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
implementation
,
trees
2200
x3194
69B
Bets
greedy
,
implementation
1200
x3188
1637E
Best Pair
binary search
,
brute force
,
implementation
2100
x3184
825D
Suitable Replacement
binary search
,
greedy
,
implementation
1500
x3178
1682D
Circular Spanning Tree
constructive algorithms
,
implementation
,
trees
2000
x3170
1685B
Linguistics
greedy
,
implementation
,
sortings
,
strings
2000
x3159
1419E
Decryption
constructive algorithms
,
implementation
,
math
,
number theory
2100
x3139
863D
Yet Another Array Queries Problem
data structures
,
implementation
1800
x3136
492D
Vanya and Computer Game
binary search
,
implementation
,
math
,
sortings
1800
x3118
198A
About Bacteria
implementation
,
math
1700
x3112
14C
Four Segments
brute force
,
constructive algorithms
,
geometry
,
implementation
,
math
1700
x3091
634A
Island Puzzle
constructive algorithms
,
implementation
1300
x3086
405D
Toy Sum
greedy
,
implementation
,
math
1700
x3085
1628C
Grid Xor
constructive algorithms
,
greedy
,
implementation
,
interactive
,
math
2300
x3076
1956D
Nene and the Mex Operator
bitmasks
,
brute force
,
constructive algorithms
,
divide and conquer
,
dp
,
greedy
,
implementation
,
math
2000
x3070
1714F
Build a Tree and That Is It
constructive algorithms
,
implementation
,
trees
1900
x3068
750D
New Year and Fireworks
brute force
,
data structures
,
dfs and similar
,
dp
,
implementation
1900
x3054
436B
Om Nom and Spiders
implementation
,
math
1400
x3042
1775E
The Human Equation
greedy
,
implementation
2100
x3025
291B
Command Line Arguments
*special problem
,
implementation
,
strings
1300
x3012
1181C
Flag
brute force
,
combinatorics
,
dp
,
implementation
1900
x3003
818B
Permutation Game
implementation
1600
x2965
1644E
Expand the Path
brute force
,
combinatorics
,
data structures
,
implementation
,
math
1900
x2961
1277D
Let's Play the Words?
data structures
,
hashing
,
implementation
,
math
1900
x2961
1951E
No Palindromes
brute force
,
constructive algorithms
,
divide and conquer
,
greedy
,
hashing
,
implementation
,
math
,
strings
2000
x2960
290A
Mysterious strings
*special problem
,
implementation
1400
x2943
1926G
Vlad and Trouble at MIT
dfs and similar
,
dp
,
flows
,
graphs
,
greedy
,
implementation
,
trees
1900
x2926
260C
Balls and Boxes
constructive algorithms
,
greedy
,
implementation
1700
x2925
1851G
Vlad and the Mountains
binary search
,
data structures
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
,
two pointers
2000
x2923
281B
Nearest Fraction
brute force
,
implementation
,
two pointers
1700
x2921
730H
Delete Them
constructive algorithms
,
implementation
1300
x2918
304B
Calendar
brute force
,
implementation
1300
x2918
893D
Credit Card
data structures
,
dp
,
greedy
,
implementation
1900
x2917
1305E
Kuroni and the Score Distribution
constructive algorithms
,
greedy
,
implementation
,
math
2200
x2916
271C
Secret
constructive algorithms
,
implementation
1500
x2903
99B
Help Chef Gerasim
implementation
,
sortings
1300
x2895
36A
Extra-terrestrial Intelligence
implementation
1300
x2895
404B
Marathon
implementation
,
math
1500
x2894
1718B
Fibonacci Strings
greedy
,
implementation
,
math
,
number theory
2000
x2875
417A
Elimination
dp
,
implementation
,
math
1500
x2874
400C
Inna and Huge Candy Matrix
implementation
,
math
1500
x2872
1846F
Rudolph and Mimic
constructive algorithms
,
implementation
,
interactive
1800
x2870
1209G1
Into Blocks (easy version)
data structures
,
dsu
,
greedy
,
implementation
,
two pointers
2000
x2866
665A
Buses Between Cities
implementation
1600
x2862
1648C
Tyler and Strings
combinatorics
,
data structures
,
implementation
1900
x2861
1815B
Sum Graph
brute force
,
constructive algorithms
,
graphs
,
implementation
,
interactive
,
shortest paths
,
trees
2000
x2841
641C
Little Artem and Dance
brute force
,
constructive algorithms
,
implementation
1800
x2841
374A
Inna and Pink Pony
greedy
,
implementation
2000
x2841
780D
Innokenty and a Football League
2-sat
,
graphs
,
greedy
,
implementation
,
shortest paths
,
strings
1900
x2840
952C
Ravioli Sort
implementation
1600
x2839
1605D
Treelabeling
bitmasks
,
constructive algorithms
,
dfs and similar
,
games
,
greedy
,
implementation
,
trees
2100
x2838
887C
Solution for Cube
brute force
,
implementation
1500
x2833
1092D2
Great Vova Wall (Version 2)
data structures
,
implementation
2200
x2830
29B
Traffic Lights
implementation
1500
x2827
491A
Up the hill
constructive algorithms
,
implementation
1000
x2821
635A
Orchestra
brute force
,
implementation
1100
x2819
57A
Square Earth?
dfs and similar
,
greedy
,
implementation
1300
x2813
1538E
Funny Substrings
data structures
,
hashing
,
implementation
,
matrices
,
strings
2100
x2802
830B
Cards Sorting
data structures
,
implementation
,
sortings
1600
x2792
1832D1
Red-Blue Operations (Easy Version)
binary search
,
greedy
,
implementation
,
math
2100
x2788
39J
Spelling Check
hashing
,
implementation
,
strings
1500
x2787
275B
Convex Shape
constructive algorithms
,
implementation
1700
x2783
1088D
Ehab and another another xor problem
bitmasks
,
constructive algorithms
,
implementation
,
interactive
2000
x2758
125B
Simple XML
implementation
1000
x2751
1271D
Portals
data structures
,
dp
,
greedy
,
implementation
,
sortings
2100
x2750
731F
Video Cards
brute force
,
data structures
,
implementation
,
math
,
number theory
1900
x2750
←
1
2
...
17
18
19
20
21
...
26
27
→
User lists
Name