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2023 Post World Finals Online ICPC Challenge powered by Huawei
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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
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Problems
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Custom test
Problems
#
Name
4A
Watermelon
brute force
,
math
800
x481045
71A
Way Too Long Words
strings
800
x353295
231A
Team
brute force
,
greedy
800
x298984
282A
Bit++
implementation
800
x235965
158A
Next Round
*special problem
,
implementation
800
x232270
50A
Domino piling
greedy
,
math
800
x228545
263A
Beautiful Matrix
implementation
800
x224452
112A
Petya and Strings
implementation
,
strings
800
x209026
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198094
281A
Word Capitalization
implementation
,
strings
800
x195931
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x193073
791A
Bear and Big Brother
implementation
800
x178693
266A
Stones on the Table
implementation
800
x177904
617A
Elephant
math
800
x169992
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x167497
59A
Word
implementation
,
strings
800
x161889
977A
Wrong Subtraction
implementation
800
x154771
110A
Nearly Lucky Number
implementation
800
x142401
734A
Anton and Danik
implementation
,
strings
800
x140071
41A
Translation
implementation
,
strings
800
x134801
116A
Tram
implementation
800
x131990
677A
Vanya and Fence
implementation
800
x130540
271A
Beautiful Year
brute force
800
x127442
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126675
1030A
In Search of an Easy Problem
implementation
800
x119834
467A
George and Accommodation
implementation
800
x113639
344A
Magnets
implementation
800
x111677
486A
Calculating Function
implementation
,
math
800
x109273
136A
Presents
implementation
800
x109013
200B
Drinks
implementation
,
math
800
x107662
61A
Ultra-Fast Mathematician
implementation
800
x103519
228A
Is your horseshoe on the other hoof?
implementation
800
x101860
705A
Hulk
implementation
800
x99326
1328A
Divisibility Problem
math
800
x93218
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91274
520A
Pangram
implementation
,
strings
800
x89705
144A
Arrival of the General
implementation
800
x88874
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87035
996A
Hit the Lottery
dp
,
greedy
800
x84116
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83875
785A
Anton and Polyhedrons
implementation
,
strings
800
x82118
268A
Games
brute force
800
x80859
1335A
Candies and Two Sisters
math
800
x78546
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77813
510A
Fox And Snake
implementation
800
x76923
427A
Police Recruits
implementation
800
x72414
1352A
Sum of Round Numbers
implementation
,
math
800
x71822
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70768
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70661
155A
I_love_\%username\%
brute force
800
x70532
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67215
581A
Vasya the Hipster
implementation
,
math
800
x67075
1154A
Restoring Three Numbers
math
800
x66304
151A
Soft Drinking
implementation
,
math
800
x65678
1742A
Sum
implementation
800
x64482
1399A
Remove Smallest
greedy
,
sortings
800
x62678
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62454
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62434
630A
Again Twenty Five!
number theory
800
x61890
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60261
1512A
Spy Detected!
brute force
,
implementation
800
x59859
1692A
Marathon
implementation
800
x59755
32B
Borze
expression parsing
,
implementation
800
x58634
1676A
Lucky?
implementation
800
x57899
758A
Holiday Of Equality
implementation
,
math
800
x57234
1669A
Division?
implementation
800
x57009
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x56957
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56604
1560A
Dislike of Threes
implementation
800
x55816
1807A
Plus or Minus
implementation
800
x55578
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55462
1367A
Short Substrings
implementation
,
strings
800
x54808
1791A
Codeforces Checking
implementation
,
strings
800
x54796
1760A
Medium Number
implementation
,
sortings
800
x53648
1343B
Balanced Array
constructive algorithms
,
math
800
x53620
703A
Mishka and Game
implementation
800
x53517
9A
Die Roll
math
,
probabilities
800
x52471
431A
Black Square
implementation
800
x51407
1850A
To My Critics
implementation
,
sortings
800
x50937
1374A
Required Remainder
math
800
x50549
1367B
Even Array
greedy
,
math
800
x50211
1624A
Plus One on the Subset
math
800
x49721
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49591
80A
Panoramix's Prediction
brute force
800
x49477
1915A
Odd One Out
bitmasks
,
implementation
800
x49390
1433A
Boring Apartments
implementation
,
math
800
x49255
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48679
1873A
Short Sort
brute force
,
implementation
800
x48560
1619A
Square String?
implementation
,
strings
800
x48448
1551A
Polycarp and Coins
greedy
,
math
800
x48359
1360A
Minimal Square
greedy
,
math
800
x47978
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47504
1472B
Fair Division
dp
,
greedy
,
math
800
x47453
1722A
Spell Check
implementation
800
x46760
492A
Vanya and Cubes
implementation
800
x46671
1283A
Minutes Before the New Year
math
800
x46476
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46419
1535A
Fair Playoff
brute force
,
implementation
800
x46308
707A
Brain's Photos
implementation
800
x46197
1360B
Honest Coach
greedy
,
sortings
800
x46037
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