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Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
19:28:19
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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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Custom test
Problems
#
Name
4A
Watermelon
brute force
,
math
800
x480655
71A
Way Too Long Words
strings
800
x353030
231A
Team
brute force
,
greedy
800
x298735
282A
Bit++
implementation
800
x235745
158A
Next Round
*special problem
,
implementation
800
x232118
50A
Domino piling
greedy
,
math
800
x228368
263A
Beautiful Matrix
implementation
800
x224273
112A
Petya and Strings
implementation
,
strings
800
x208834
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197913
281A
Word Capitalization
implementation
,
strings
800
x195775
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x192893
791A
Bear and Big Brother
implementation
800
x178522
266A
Stones on the Table
implementation
800
x177767
617A
Elephant
math
800
x169834
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x167312
59A
Word
implementation
,
strings
800
x161748
977A
Wrong Subtraction
implementation
800
x154639
110A
Nearly Lucky Number
implementation
800
x142284
734A
Anton and Danik
implementation
,
strings
800
x139939
41A
Translation
implementation
,
strings
800
x134699
116A
Tram
implementation
800
x131882
677A
Vanya and Fence
implementation
800
x130411
271A
Beautiful Year
brute force
800
x127341
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126576
1030A
In Search of an Easy Problem
implementation
800
x119724
467A
George and Accommodation
implementation
800
x113561
344A
Magnets
implementation
800
x111586
486A
Calculating Function
implementation
,
math
800
x109181
136A
Presents
implementation
800
x108931
200B
Drinks
implementation
,
math
800
x107569
61A
Ultra-Fast Mathematician
implementation
800
x103441
228A
Is your horseshoe on the other hoof?
implementation
800
x101775
705A
Hulk
implementation
800
x99265
1328A
Divisibility Problem
math
800
x93116
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91203
520A
Pangram
implementation
,
strings
800
x89626
144A
Arrival of the General
implementation
800
x88818
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x86985
996A
Hit the Lottery
dp
,
greedy
800
x84061
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83792
785A
Anton and Polyhedrons
implementation
,
strings
800
x82051
268A
Games
brute force
800
x80795
1335A
Candies and Two Sisters
math
800
x78491
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77762
510A
Fox And Snake
implementation
800
x76864
427A
Police Recruits
implementation
800
x72359
1352A
Sum of Round Numbers
implementation
,
math
800
x71716
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70717
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70602
155A
I_love_\%username\%
brute force
800
x70486
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67162
581A
Vasya the Hipster
implementation
,
math
800
x67035
1154A
Restoring Three Numbers
math
800
x66252
151A
Soft Drinking
implementation
,
math
800
x65616
1742A
Sum
implementation
800
x64418
1399A
Remove Smallest
greedy
,
sortings
800
x62638
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62403
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62374
630A
Again Twenty Five!
number theory
800
x61836
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60185
1512A
Spy Detected!
brute force
,
implementation
800
x59809
1692A
Marathon
implementation
800
x59656
32B
Borze
expression parsing
,
implementation
800
x58578
1676A
Lucky?
implementation
800
x57819
758A
Holiday Of Equality
implementation
,
math
800
x57195
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x56935
1669A
Division?
implementation
800
x56905
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56577
1560A
Dislike of Threes
implementation
800
x55771
1807A
Plus or Minus
implementation
800
x55512
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55423
1367A
Short Substrings
implementation
,
strings
800
x54773
1791A
Codeforces Checking
implementation
,
strings
800
x54735
1343B
Balanced Array
constructive algorithms
,
math
800
x53589
1760A
Medium Number
implementation
,
sortings
800
x53572
703A
Mishka and Game
implementation
800
x53484
9A
Die Roll
math
,
probabilities
800
x52438
431A
Black Square
implementation
800
x51365
1850A
To My Critics
implementation
,
sortings
800
x50876
1374A
Required Remainder
math
800
x50526
1367B
Even Array
greedy
,
math
800
x50175
1624A
Plus One on the Subset
math
800
x49689
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49560
80A
Panoramix's Prediction
brute force
800
x49446
1915A
Odd One Out
bitmasks
,
implementation
800
x49308
1433A
Boring Apartments
implementation
,
math
800
x49233
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48649
1873A
Short Sort
brute force
,
implementation
800
x48496
1619A
Square String?
implementation
,
strings
800
x48434
1551A
Polycarp and Coins
greedy
,
math
800
x48329
1360A
Minimal Square
greedy
,
math
800
x47962
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47481
1472B
Fair Division
dp
,
greedy
,
math
800
x47427
1722A
Spell Check
implementation
800
x46714
492A
Vanya and Cubes
implementation
800
x46640
1283A
Minutes Before the New Year
math
800
x46446
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46391
1535A
Fair Playoff
brute force
,
implementation
800
x46265
707A
Brain's Photos
implementation
800
x46163
1360B
Honest Coach
greedy
,
sortings
800
x46012
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