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Before contest
Codeforces Round 942 (Div. 1)
03:28:14
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Before contest
Codeforces Round 942 (Div. 2)
03:28:13
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strings
combine-tags-by-or
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2-sat
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dfs and similar
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Custom test
Problems
#
Name
71A
Way Too Long Words
strings
800
x352579
112A
Petya and Strings
implementation
,
strings
800
x208599
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197687
281A
Word Capitalization
implementation
,
strings
800
x195546
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x192662
118A
String Task
implementation
,
strings
1000
x180856
59A
Word
implementation
,
strings
800
x161502
96A
Football
implementation
,
strings
900
x148697
734A
Anton and Danik
implementation
,
strings
800
x139716
41A
Translation
implementation
,
strings
800
x134514
58A
Chat room
greedy
,
strings
1000
x121913
520A
Pangram
implementation
,
strings
800
x89520
208A
Dubstep
strings
900
x83343
785A
Anton and Polyhedrons
implementation
,
strings
800
x81954
131A
cAPS lOCK
implementation
,
strings
1000
x81049
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77701
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x62299
1367A
Short Substrings
implementation
,
strings
800
x54729
1791A
Codeforces Checking
implementation
,
strings
800
x54643
43A
Football
strings
1000
x51950
1619A
Square String?
implementation
,
strings
800
x48380
1829A
Love Story
implementation
,
strings
800
x45615
1374C
Move Brackets
greedy
,
strings
1000
x43262
731A
Night at the Museum
implementation
,
strings
800
x43028
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41546
1850C
Word on the Paper
implementation
,
strings
800
x40780
1927A
Make it White
greedy
,
strings
800
x39458
1579A
Casimir's String Solitaire
math
,
strings
800
x37752
499B
Lecture
implementation
,
strings
1000
x37392
977B
Two-gram
implementation
,
strings
900
x36663
550A
Two Substrings
brute force
,
dp
,
greedy
,
implementation
,
strings
1500
x36201
1607A
Linear Keyboard
implementation
,
strings
800
x35966
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35559
978B
File Name
greedy
,
strings
800
x34938
1703C
Cypher
brute force
,
implementation
,
strings
800
x34033
1650A
Deletions of Two Adjacent Letters
implementation
,
strings
800
x33826
1931A
Recovering a Small String
brute force
,
strings
800
x33351
1840A
Cipher Shifer
implementation
,
strings
,
two pointers
800
x32457
1833A
Musical Puzzle
implementation
,
strings
800
x31497
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30609
1303A
Erasing Zeroes
implementation
,
strings
800
x30459
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x30137
1811A
Insert Digit
greedy
,
math
,
strings
800
x29956
1800A
Is It a Cat?
implementation
,
strings
800
x29923
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x29762
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x29618
1567A
Domino Disaster
implementation
,
strings
800
x29614
1914A
Problemsolving Log
implementation
,
strings
800
x29522
1729B
Decode String
greedy
,
strings
800
x29324
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x29306
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29092
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x28820
1220A
Cards
implementation
,
sortings
,
strings
800
x28796
1759A
Yes-Yes?
implementation
,
strings
800
x28709
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28708
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28620
1397A
Juggling Letters
greedy
,
strings
800
x28098
1915D
Unnatural Language Processing
greedy
,
implementation
,
strings
900
x27448
1324B
Yet Another Palindrome Problem
brute force
,
strings
1100
x27445
1881A
Don't Try to Count
brute force
,
strings
800
x27156
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x27052
1791D
Distinct Split
brute force
,
greedy
,
strings
1000
x26763
1400A
String Similarity
constructive algorithms
,
strings
800
x26537
1883B
Chemistry
strings
900
x26524
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x26510
746B
Decoding
implementation
,
strings
900
x26171
1846B
Rudolph and Tic-Tac-Toe
brute force
,
implementation
,
strings
800
x25988
219A
k-String
implementation
,
strings
1000
x25946
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x25944
1922A
Tricky Template
constructive algorithms
,
implementation
,
strings
800
x25792
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25408
1935A
Entertainment in MAC
constructive algorithms
,
strings
800
x25265
1832A
New Palindrome
strings
800
x24820
1481A
Space Navigation
greedy
,
strings
800
x24642
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x24342
1703D
Double Strings
brute force
,
data structures
,
strings
1100
x24258
1800B
Count the Number of Pairs
greedy
,
strings
1000
x23880
1539B
Love Song
dp
,
implementation
,
strings
800
x23750
1369B
AccurateLee
greedy
,
implementation
,
strings
1200
x23735
1634A
Reverse and Concatenate
greedy
,
strings
800
x23633
1552A
Subsequence Permutation
sortings
,
strings
800
x23498
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23447
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x23318
1795A
Two Towers
brute force
,
implementation
,
strings
800
x23221
1342B
Binary Period
constructive algorithms
,
strings
1100
x23137
1907B
YetnotherrokenKeoard
data structures
,
implementation
,
strings
1000
x23061
1674C
Infinite Replacement
combinatorics
,
implementation
,
strings
1000
x22882
1779A
Hall of Fame
constructive algorithms
,
greedy
,
strings
800
x22877
1363B
Subsequence Hate
implementation
,
strings
1400
x22856
1606A
AB Balance
strings
900
x22707
1706A
Another String Minimization Problem
2-sat
,
constructive algorithms
,
greedy
,
string suffix structures
,
strings
800
x22541
1626B
Minor Reduction
greedy
,
strings
1100
x22301
1005B
Delete from the Left
brute force
,
implementation
,
strings
900
x22281
508B
Anton and currency you all know
greedy
,
math
,
strings
1300
x22047
1800D
Remove Two Letters
data structures
,
greedy
,
hashing
,
strings
1200
x21621
1900A
Cover in Water
constructive algorithms
,
greedy
,
implementation
,
strings
800
x21604
1913B
Swap and Delete
strings
1000
x21504
1146A
Love "A"
implementation
,
strings
800
x21408
1504A
Déjà Vu
constructive algorithms
,
strings
800
x21391
798A
Mike and palindrome
brute force
,
constructive algorithms
,
strings
1000
x21033
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