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Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
13:25:51
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Difficulty:
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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
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Problems
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Status
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Custom test
Problems
#
Name
53A
Autocomplete
implementation
1100
x4827
1070K
Video Posts
implementation
1100
x4829
312A
Whose sentence is it?
implementation
,
strings
1100
x4855
813A
The Contest
implementation
1100
x5009
245B
Internet Address
implementation
,
strings
1100
x5124
90B
African Crossword
implementation
,
strings
1100
x5153
252A
Little Xor
brute force
,
implementation
1100
x5164
12C
Fruits
greedy
,
implementation
,
sortings
1100
x5759
103A
Testing Pants for Sadness
greedy
,
implementation
,
math
1100
x5859
192B
Walking in the Rain
brute force
,
implementation
1100
x6140
242A
Heads or Tails
brute force
,
implementation
1100
x6232
257A
Sockets
greedy
,
implementation
,
sortings
1100
x6378
381B
Sereja and Stairs
greedy
,
implementation
,
sortings
1100
x6580
505A
Mr. Kitayuta's Gift
brute force
,
implementation
,
strings
1100
x6591
975B
Mancala
brute force
,
implementation
1100
x6736
884B
Japanese Crosswords Strike Back
implementation
1100
x6796
389B
Fox and Cross
greedy
,
implementation
1100
x6813
765B
Code obfuscation
greedy
,
implementation
,
strings
1100
x7018
1121A
Technogoblet of Fire
implementation
,
sortings
1100
x7097
754B
Ilya and tic-tac-toe game
brute force
,
implementation
1100
x7147
984B
Minesweeper
implementation
1100
x7256
950B
Intercepted Message
greedy
,
implementation
1100
x7298
825A
Binary Protocol
implementation
1100
x7532
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7594
845A
Chess Tourney
implementation
,
sortings
1100
x7631
686B
Little Robber Girl's Zoo
constructive algorithms
,
implementation
,
sortings
1100
x7699
544A
Set of Strings
implementation
,
strings
1100
x7723
556B
Case of Fake Numbers
brute force
,
implementation
1100
x7875
12B
Correct Solution?
implementation
,
sortings
1100
x7992
985A
Chess Placing
implementation
1100
x8065
557A
Ilya and Diplomas
greedy
,
implementation
,
math
1100
x8200
495A
Digital Counter
implementation
1100
x8292
1146B
Hate "A"
implementation
,
strings
1100
x8326
602A
Two Bases
brute force
,
implementation
1100
x8360
834B
The Festive Evening
data structures
,
implementation
1100
x8511
522B
Photo to Remember
*special problem
,
data structures
,
dp
,
implementation
1100
x8682
289A
Polo the Penguin and Segments
brute force
,
implementation
1100
x8690
792A
New Bus Route
implementation
,
sortings
1100
x8739
609B
The Best Gift
constructive algorithms
,
implementation
1100
x8793
121A
Lucky Sum
implementation
1100
x8819
218A
Mountain Scenery
brute force
,
constructive algorithms
,
implementation
1100
x8893
347B
Fixed Points
brute force
,
implementation
,
math
1100
x9138
789A
Anastasia and pebbles
implementation
,
math
1100
x9212
898B
Proper Nutrition
brute force
,
implementation
,
number theory
1100
x9259
355A
Vasya and Digital Root
constructive algorithms
,
implementation
1100
x9262
25B
Phone numbers
implementation
1100
x9282
869A
The Artful Expedient
brute force
,
implementation
1100
x9358
1132A
Regular Bracket Sequence
greedy
,
implementation
1100
x9486
712B
Memory and Trident
implementation
,
strings
1100
x9608
902A
Visiting a Friend
greedy
,
implementation
1100
x9679
1105B
Zuhair and Strings
brute force
,
implementation
,
strings
1100
x9792
548A
Mike and Fax
brute force
,
implementation
,
strings
1100
x9832
1966B
Rectangle Filling
constructive algorithms
,
implementation
1100
x9927
758B
Blown Garland
brute force
,
implementation
,
number theory
1100
x10037
723B
Text Document Analysis
expression parsing
,
implementation
,
strings
1100
x10049
558A
Lala Land and Apple Trees
brute force
,
implementation
,
sortings
1100
x10165
596B
Wilbur and Array
greedy
,
implementation
1100
x10194
1119A
Ilya and a Colorful Walk
greedy
,
implementation
1100
x10397
714A
Meeting of Old Friends
implementation
,
math
1100
x10676
877A
Alex and broken contest
implementation
,
strings
1100
x10693
1105A
Salem and Sticks
brute force
,
implementation
1100
x10773
1117A
Best Subsegment
implementation
,
math
1100
x10860
911A
Nearest Minimums
implementation
1100
x11289
1609B
William the Vigilant
implementation
,
strings
1100
x11498
1413B
A New Technique
implementation
1100
x11602
1255B
Fridge Lockers
graphs
,
implementation
1100
x11673
382A
Ksenia and Pan Scales
greedy
,
implementation
1100
x11755
721B
Passwords
implementation
,
math
,
sortings
,
strings
1100
x11968
534A
Exam
constructive algorithms
,
implementation
,
math
1100
x12017
6B
President's Office
implementation
1100
x12118
1534B
Histogram Ugliness
greedy
,
implementation
,
math
1100
x12355
1670B
Dorms War
brute force
,
implementation
,
strings
1100
x12410
1042A
Benches
binary search
,
implementation
1100
x12501
1421B
Putting Bricks in the Wall
constructive algorithms
,
implementation
1100
x12874
581B
Luxurious Houses
implementation
,
math
1100
x12885
1672C
Unequal Array
constructive algorithms
,
greedy
,
implementation
1100
x12914
285A
Slightly Decreasing Permutations
greedy
,
implementation
1100
x13087
471A
MUH and Sticks
implementation
1100
x13321
1863C
MEX Repetition
implementation
,
math
1100
x13331
116B
Little Pigs and Wolves
greedy
,
implementation
1100
x13412
362B
Petya and Staircases
implementation
,
sortings
1100
x13496
1165A
Remainder
implementation
,
math
1100
x13559
259B
Little Elephant and Magic Square
brute force
,
implementation
1100
x13676
427B
Prison Transfer
data structures
,
implementation
1100
x13689
570A
Elections
implementation
1100
x13735
1602B
Divine Array
constructive algorithms
,
implementation
1100
x13838
1623B
Game on Ranges
brute force
,
dfs and similar
,
implementation
,
sortings
1100
x13901
797A
k-Factorization
implementation
,
math
,
number theory
1100
x13937
365B
The Fibonacci Segment
implementation
1100
x14017
1957B
A BIT of a Construction
bitmasks
,
constructive algorithms
,
greedy
,
implementation
1100
x14065
527A
Playing with Paper
implementation
,
math
1100
x14084
1717B
Madoka and Underground Competitions
constructive algorithms
,
implementation
1100
x14477
1293A
ConneR and the A.R.C. Markland-N
binary search
,
brute force
,
implementation
1100
x14958
242B
Big Segment
implementation
,
sortings
1100
x15196
1157A
Reachable Numbers
implementation
1100
x15374
719A
Vitya in the Countryside
implementation
1100
x15397
43B
Letter
implementation
,
strings
1100
x15678
433A
Kitahara Haruki's Gift
brute force
,
implementation
1100
x15724
218B
Airport
implementation
1100
x15725
1923B
Monsters Attack!
dp
,
greedy
,
implementation
1100
x16072
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