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Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
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math
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
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strings
ternary search
trees
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Custom test
Problems
#
Name
4A
Watermelon
brute force
,
math
800
x480560
50A
Domino piling
greedy
,
math
800
x228328
617A
Elephant
math
800
x169807
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x167273
486A
Calculating Function
implementation
,
math
800
x109162
200B
Drinks
implementation
,
math
800
x107550
1328A
Divisibility Problem
math
800
x93102
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x86965
1335A
Candies and Two Sisters
math
800
x78484
1352A
Sum of Round Numbers
implementation
,
math
800
x71698
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70706
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70588
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67150
581A
Vasya the Hipster
implementation
,
math
800
x67026
1154A
Restoring Three Numbers
math
800
x66249
151A
Soft Drinking
implementation
,
math
800
x65608
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62398
758A
Holiday Of Equality
implementation
,
math
800
x57188
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x56928
1343B
Balanced Array
constructive algorithms
,
math
800
x53584
9A
Die Roll
math
,
probabilities
800
x52427
1374A
Required Remainder
math
800
x50522
1367B
Even Array
greedy
,
math
800
x50171
1624A
Plus One on the Subset
math
800
x49689
1433A
Boring Apartments
implementation
,
math
800
x49225
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48644
1551A
Polycarp and Coins
greedy
,
math
800
x48324
1360A
Minimal Square
greedy
,
math
800
x47959
1472B
Fair Division
dp
,
greedy
,
math
800
x47423
1283A
Minutes Before the New Year
math
800
x46440
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46384
1426A
Floor Number
implementation
,
math
800
x45454
1676B
Equal Candies
greedy
,
math
,
sortings
800
x45003
1371A
Magical Sticks
math
800
x44235
1294A
Collecting Coins
math
800
x44201
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x44033
1873B
Good Kid
brute force
,
greedy
,
math
800
x44022
1857A
Array Coloring
greedy
,
math
800
x43308
1520B
Ordinary Numbers
brute force
,
math
,
number theory
800
x42750
1542A
Odd Set
math
800
x42213
1472A
Cards for Friends
greedy
,
math
800
x40805
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40651
233A
Perfect Permutation
implementation
,
math
800
x40348
1921A
Square
greedy
,
math
800
x39763
1296A
Array with Odd Sum
math
800
x39422
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38935
1729A
Two Elevators
math
800
x38854
1941A
Rudolf and the Ticket
brute force
,
math
800
x38617
1348A
Phoenix and Balance
greedy
,
math
800
x38350
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38278
1358A
Park Lighting
greedy
,
math
800
x38059
1579A
Casimir's String Solitaire
math
,
strings
800
x37768
1385A
Three Pairwise Maximums
math
800
x37528
1899A
Game with Integers
games
,
math
,
number theory
800
x37525
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37183
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36726
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x35967
1537A
Arithmetic Array
greedy
,
math
800
x35960
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35586
1369A
FashionabLee
geometry
,
math
800
x35552
1593A
Elections
math
800
x35494
1955A
Yogurt Sale
math
800
x35292
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35205
1873C
Target Practice
implementation
,
math
800
x35029
1660A
Vasya and Coins
greedy
,
math
800
x35009
1560B
Who's Opposite?
math
800
x34671
1950C
Clock Conversion
implementation
,
math
800
x34187
1858A
Buttons
games
,
greedy
,
math
800
x34071
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32825
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32789
822A
I'm bored with life
implementation
,
math
,
number theory
800
x31640
1919A
Wallet Exchange
games
,
math
800
x31639
1618A
Polycarp and Sums of Subsequences
math
,
sortings
800
x31509
1675A
Food for Animals
greedy
,
math
800
x31466
1716A
2-3 Moves
greedy
,
math
800
x31362
1846A
Rudolph and Cut the Rope
implementation
,
math
800
x31331
1549A
Gregor and Cryptography
math
,
number theory
800
x31289
1843C
Sum in Binary Tree
bitmasks
,
combinatorics
,
math
,
trees
800
x31007
1538B
Friends and Candies
greedy
,
math
800
x30997
1490A
Dense Array
greedy
,
math
800
x30594
1611A
Make Even
constructive algorithms
,
math
800
x30568
1553A
Digits Sum
math
,
number theory
800
x30103
1506A
Strange Table
math
800
x30089
1619B
Squares and Cubes
implementation
,
math
800
x30026
1811A
Insert Digit
greedy
,
math
,
strings
800
x29969
1547A
Shortest Path with Obstacle
implementation
,
math
800
x29857
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29823
1878B
Aleksa and Stack
constructive algorithms
,
math
800
x29777
1933B
Turtle Math: Fast Three Task
implementation
,
math
,
number theory
800
x29708
1519B
The Cake Is a Lie
dp
,
math
800
x29701
1622A
Construct a Rectangle
geometry
,
math
800
x29445
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29363
1859A
United We Stand
constructive algorithms
,
math
,
number theory
800
x29155
1077A
Frog Jumping
math
800
x29035
1837A
Grasshopper on a Line
constructive algorithms
,
math
800
x29014
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x28980
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28749
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28731
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x28653
1851A
Escalator Conversations
brute force
,
constructive algorithms
,
math
800
x28582
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