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combine-tags-by-or
*combine tags by OR
2-sat
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Custom test
Problems
#
Name
71A
Way Too Long Words
strings
800
x354375
112A
Petya and Strings
implementation
,
strings
800
x209594
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198644
281A
Word Capitalization
implementation
,
strings
800
x196492
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x193726
118A
String Task
implementation
,
strings
1000
x181517
59A
Word
implementation
,
strings
800
x162435
96A
Football
implementation
,
strings
900
x149344
734A
Anton and Danik
implementation
,
strings
800
x140556
41A
Translation
implementation
,
strings
800
x135202
58A
Chat room
greedy
,
strings
1000
x122381
520A
Pangram
implementation
,
strings
800
x90000
208A
Dubstep
strings
900
x83703
785A
Anton and Polyhedrons
implementation
,
strings
800
x82382
131A
cAPS lOCK
implementation
,
strings
1000
x81318
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77988
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62891
1791A
Codeforces Checking
implementation
,
strings
800
x55136
1367A
Short Substrings
implementation
,
strings
800
x54904
43A
Football
strings
1000
x52195
1619A
Square String?
implementation
,
strings
800
x48560
1829A
Love Story
implementation
,
strings
800
x45980
1374C
Move Brackets
greedy
,
strings
1000
x43453
731A
Night at the Museum
implementation
,
strings
800
x43225
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41812
1850C
Word on the Paper
implementation
,
strings
800
x41172
1927A
Make it White
greedy
,
strings
800
x39714
1579A
Casimir's String Solitaire
math
,
strings
800
x37825
499B
Lecture
implementation
,
strings
1000
x37512
977B
Two-gram
implementation
,
strings
900
x36829
550A
Two Substrings
brute force
,
dp
,
greedy
,
implementation
,
strings
1500
x36321
1607A
Linear Keyboard
implementation
,
strings
800
x36089
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35646
978B
File Name
greedy
,
strings
800
x35032
1703C
Cypher
brute force
,
implementation
,
strings
800
x34193
1650A
Deletions of Two Adjacent Letters
implementation
,
strings
800
x33898
1931A
Recovering a Small String
brute force
,
strings
800
x33561
1840A
Cipher Shifer
implementation
,
strings
,
two pointers
800
x32608
1833A
Musical Puzzle
implementation
,
strings
800
x31590
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30749
1303A
Erasing Zeroes
implementation
,
strings
800
x30550
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x30377
1811A
Insert Digit
greedy
,
math
,
strings
800
x30042
1800A
Is It a Cat?
implementation
,
strings
800
x30013
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x29845
1914A
Problemsolving Log
implementation
,
strings
800
x29749
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x29711
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x29681
1567A
Domino Disaster
implementation
,
strings
800
x29652
1729B
Decode String
greedy
,
strings
800
x29403
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29211
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x28958
1220A
Cards
implementation
,
sortings
,
strings
800
x28842
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28840
1759A
Yes-Yes?
implementation
,
strings
800
x28795
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28648
1397A
Juggling Letters
greedy
,
strings
800
x28120
1915D
Unnatural Language Processing
greedy
,
implementation
,
strings
900
x27728
1324B
Yet Another Palindrome Problem
brute force
,
strings
1100
x27494
1881A
Don't Try to Count
brute force
,
strings
800
x27484
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x27149
1791D
Distinct Split
brute force
,
greedy
,
strings
1000
x26968
1883B
Chemistry
strings
900
x26897
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x26569
1400A
String Similarity
constructive algorithms
,
strings
800
x26552
746B
Decoding
implementation
,
strings
900
x26265
1846B
Rudolph and Tic-Tac-Toe
brute force
,
implementation
,
strings
800
x26096
219A
k-String
implementation
,
strings
1000
x26032
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x25973
1922A
Tricky Template
constructive algorithms
,
implementation
,
strings
800
x25865
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25432
1935A
Entertainment in MAC
constructive algorithms
,
strings
800
x25428
1832A
New Palindrome
strings
800
x24883
1481A
Space Navigation
greedy
,
strings
800
x24655
1703D
Double Strings
brute force
,
data structures
,
strings
1100
x24387
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x24377
1800B
Count the Number of Pairs
greedy
,
strings
1000
x23959
1539B
Love Song
dp
,
implementation
,
strings
800
x23792
1369B
AccurateLee
greedy
,
implementation
,
strings
1200
x23762
1634A
Reverse and Concatenate
greedy
,
strings
800
x23649
1552A
Subsequence Permutation
sortings
,
strings
800
x23516
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23478
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x23406
1907B
YetnotherrokenKeoard
data structures
,
implementation
,
strings
1000
x23292
1795A
Two Towers
brute force
,
implementation
,
strings
800
x23240
1342B
Binary Period
constructive algorithms
,
strings
1100
x23149
1674C
Infinite Replacement
combinatorics
,
implementation
,
strings
1000
x22925
1779A
Hall of Fame
constructive algorithms
,
greedy
,
strings
800
x22896
1363B
Subsequence Hate
implementation
,
strings
1400
x22895
1606A
AB Balance
strings
900
x22849
1971B
Different String
implementation
,
strings
x22704
1706A
Another String Minimization Problem
2-sat
,
constructive algorithms
,
greedy
,
string suffix structures
,
strings
800
x22566
1005B
Delete from the Left
brute force
,
implementation
,
strings
900
x22351
1626B
Minor Reduction
greedy
,
strings
1100
x22334
508B
Anton and currency you all know
greedy
,
math
,
strings
1300
x22079
1900A
Cover in Water
constructive algorithms
,
greedy
,
implementation
,
strings
800
x21937
1913B
Swap and Delete
strings
1000
x21828
1800D
Remove Two Letters
data structures
,
greedy
,
hashing
,
strings
1200
x21705
1146A
Love "A"
implementation
,
strings
800
x21441
1504A
Déjà Vu
constructive algorithms
,
strings
800
x21406
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