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2023 Post World Finals Online ICPC Challenge powered by Huawei
22:01:26
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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
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Custom test
Problems
#
Name
282A
Bit++
implementation
800
x236056
158A
Next Round
*special problem
,
implementation
800
x232336
263A
Beautiful Matrix
implementation
800
x224523
112A
Petya and Strings
implementation
,
strings
800
x209065
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198144
281A
Word Capitalization
implementation
,
strings
800
x195971
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x193117
791A
Bear and Big Brother
implementation
800
x178745
266A
Stones on the Table
implementation
800
x177945
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x167559
59A
Word
implementation
,
strings
800
x161941
977A
Wrong Subtraction
implementation
800
x154822
110A
Nearly Lucky Number
implementation
800
x142443
734A
Anton and Danik
implementation
,
strings
800
x140121
41A
Translation
implementation
,
strings
800
x134840
116A
Tram
implementation
800
x132027
677A
Vanya and Fence
implementation
800
x130575
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126708
1030A
In Search of an Easy Problem
implementation
800
x119863
467A
George and Accommodation
implementation
800
x113669
344A
Magnets
implementation
800
x111712
486A
Calculating Function
implementation
,
math
800
x109303
136A
Presents
implementation
800
x109034
200B
Drinks
implementation
,
math
800
x107685
61A
Ultra-Fast Mathematician
implementation
800
x103551
228A
Is your horseshoe on the other hoof?
implementation
800
x101896
705A
Hulk
implementation
800
x99352
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91296
520A
Pangram
implementation
,
strings
800
x89738
144A
Arrival of the General
implementation
800
x88899
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87054
443A
Anton and Letters
constructive algorithms
,
implementation
800
x83902
785A
Anton and Polyhedrons
implementation
,
strings
800
x82132
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77831
510A
Fox And Snake
implementation
800
x76938
427A
Police Recruits
implementation
800
x72434
1352A
Sum of Round Numbers
implementation
,
math
800
x71849
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70780
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70676
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67230
581A
Vasya the Hipster
implementation
,
math
800
x67087
151A
Soft Drinking
implementation
,
math
800
x65700
1742A
Sum
implementation
800
x64513
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62485
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60282
1512A
Spy Detected!
brute force
,
implementation
800
x59880
1692A
Marathon
implementation
800
x59779
32B
Borze
expression parsing
,
implementation
800
x58654
1676A
Lucky?
implementation
800
x57919
758A
Holiday Of Equality
implementation
,
math
800
x57247
1669A
Division?
implementation
800
x57036
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56613
1560A
Dislike of Threes
implementation
800
x55837
1807A
Plus or Minus
implementation
800
x55599
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55474
1791A
Codeforces Checking
implementation
,
strings
800
x54817
1367A
Short Substrings
implementation
,
strings
800
x54815
1760A
Medium Number
implementation
,
sortings
800
x53676
703A
Mishka and Game
implementation
800
x53521
431A
Black Square
implementation
800
x51423
1850A
To My Critics
implementation
,
sortings
800
x50953
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49600
1915A
Odd One Out
bitmasks
,
implementation
800
x49429
1433A
Boring Apartments
implementation
,
math
800
x49265
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48690
1873A
Short Sort
brute force
,
implementation
800
x48585
1619A
Square String?
implementation
,
strings
800
x48454
1722A
Spell Check
implementation
800
x46773
492A
Vanya and Cubes
implementation
800
x46685
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46428
1535A
Fair Playoff
brute force
,
implementation
800
x46321
707A
Brain's Photos
implementation
800
x46207
1829A
Love Story
implementation
,
strings
800
x45764
1426A
Floor Number
implementation
,
math
800
x45496
1703B
ICPC Balloons
data structures
,
implementation
800
x45268
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44326
1772A
A+B?
implementation
800
x43929
1722B
Colourblindness
implementation
800
x43141
731A
Night at the Museum
implementation
,
strings
800
x43129
1950A
Stair, Peak, or Neither?
implementation
800
x43015
1791B
Following Directions
geometry
,
implementation
800
x41739
1926A
Vlad and the Best of Five
implementation
800
x41692
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41648
935A
Fafa and his Company
brute force
,
implementation
800
x41504
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41434
1850C
Word on the Paper
implementation
,
strings
800
x40909
1829B
Blank Space
implementation
800
x40681
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40673
1791C
Prepend and Append
implementation
,
two pointers
800
x40456
233A
Perfect Permutation
implementation
,
math
800
x40387
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x40284
1462A
Favorite Sequence
implementation
,
two pointers
800
x39944
1669B
Triple
implementation
,
sortings
800
x39837
1915B
Not Quite Latin Square
bitmasks
,
brute force
,
implementation
800
x38346
1915C
Can I Square?
binary search
,
implementation
800
x37360
509A
Maximum in Table
brute force
,
implementation
800
x37229
1097A
Gennady and a Card Game
brute force
,
implementation
800
x36998
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36755
1186A
Vus the Cossack and a Contest
implementation
800
x36131
1607A
Linear Keyboard
implementation
,
strings
800
x35994
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