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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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Custom test
Problems
#
Name
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x40460
233A
Perfect Permutation
implementation
,
math
800
x40461
1791C
Prepend and Append
implementation
,
two pointers
800
x40640
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40705
1829B
Blank Space
implementation
800
x40895
1850C
Word on the Paper
implementation
,
strings
800
x41168
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41546
935A
Fafa and his Company
brute force
,
implementation
800
x41552
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41810
1791B
Following Directions
geometry
,
implementation
800
x41910
1926A
Vlad and the Best of Five
implementation
800
x42113
731A
Night at the Museum
implementation
,
strings
800
x43223
1722B
Colourblindness
implementation
800
x43309
1950A
Stair, Peak, or Neither?
implementation
800
x43942
1772A
A+B?
implementation
800
x44070
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44539
1703B
ICPC Balloons
data structures
,
implementation
800
x45514
1426A
Floor Number
implementation
,
math
800
x45573
1829A
Love Story
implementation
,
strings
800
x45976
707A
Brain's Photos
implementation
800
x46310
1535A
Fair Playoff
brute force
,
implementation
800
x46423
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46557
492A
Vanya and Cubes
implementation
800
x46808
1722A
Spell Check
implementation
800
x46990
1619A
Square String?
implementation
,
strings
800
x48557
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48808
1873A
Short Sort
brute force
,
implementation
800
x48862
1433A
Boring Apartments
implementation
,
math
800
x49353
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49711
1915A
Odd One Out
bitmasks
,
implementation
800
x49824
1850A
To My Critics
implementation
,
sortings
800
x51203
431A
Black Square
implementation
800
x51561
703A
Mishka and Game
implementation
800
x53611
1760A
Medium Number
implementation
,
sortings
800
x53916
1367A
Short Substrings
implementation
,
strings
800
x54902
1791A
Codeforces Checking
implementation
,
strings
800
x55132
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55609
1807A
Plus or Minus
implementation
800
x55897
1560A
Dislike of Threes
implementation
800
x55962
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56708
1669A
Division?
implementation
800
x57287
758A
Holiday Of Equality
implementation
,
math
800
x57374
1676A
Lucky?
implementation
800
x58142
32B
Borze
expression parsing
,
implementation
800
x58847
1512A
Spy Detected!
brute force
,
implementation
800
x60019
1692A
Marathon
implementation
800
x60039
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60490
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62878
1742A
Sum
implementation
800
x64849
151A
Soft Drinking
implementation
,
math
800
x65894
581A
Vasya the Hipster
implementation
,
math
800
x67240
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67418
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70904
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70976
1352A
Sum of Round Numbers
implementation
,
math
800
x72135
427A
Police Recruits
implementation
800
x72605
510A
Fox And Snake
implementation
800
x77177
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77986
785A
Anton and Polyhedrons
implementation
,
strings
800
x82376
443A
Anton and Letters
constructive algorithms
,
implementation
800
x84084
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87228
144A
Arrival of the General
implementation
800
x89145
520A
Pangram
implementation
,
strings
800
x89996
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91530
705A
Hulk
implementation
800
x99577
228A
Is your horseshoe on the other hoof?
implementation
800
x102168
61A
Ultra-Fast Mathematician
implementation
800
x103795
200B
Drinks
implementation
,
math
800
x107994
136A
Presents
implementation
800
x109325
486A
Calculating Function
implementation
,
math
800
x109584
344A
Magnets
implementation
800
x112015
467A
George and Accommodation
implementation
800
x113973
1030A
In Search of an Easy Problem
implementation
800
x120234
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x126997
677A
Vanya and Fence
implementation
800
x130971
116A
Tram
implementation
800
x132336
41A
Translation
implementation
,
strings
800
x135194
734A
Anton and Danik
implementation
,
strings
800
x140545
110A
Nearly Lucky Number
implementation
800
x142809
977A
Wrong Subtraction
implementation
800
x155244
59A
Word
implementation
,
strings
800
x162416
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x168017
266A
Stones on the Table
implementation
800
x178368
791A
Bear and Big Brother
implementation
800
x179266
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x193702
281A
Word Capitalization
implementation
,
strings
800
x196475
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198633
112A
Petya and Strings
implementation
,
strings
800
x209575
263A
Beautiful Matrix
implementation
800
x225170
158A
Next Round
*special problem
,
implementation
800
x232850
282A
Bit++
implementation
800
x236816
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