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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
4 days
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strings
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
Standings
Custom test
Problems
#
Name
831B
Keyboard Layouts
implementation
,
strings
800
x14086
1038A
Equality
implementation
,
strings
800
x14427
1189A
Keanu Reeves
strings
800
x15057
1898A
Milica and String
brute force
,
implementation
,
strings
800
x15133
1654B
Prefix Removals
strings
800
x15488
1789B
Serval and Inversion Magic
brute force
,
implementation
,
strings
,
two pointers
800
x15821
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x15919
1617A
Forbidden Subsequence
constructive algorithms
,
greedy
,
sortings
,
strings
800
x16104
1820A
Yura's New Name
implementation
,
strings
800
x16379
1139A
Even Substrings
implementation
,
strings
800
x16466
1794A
Prefix and Suffix Array
strings
800
x16584
1284A
New Year and Naming
implementation
,
strings
800
x17775
1894A
Secret Sport
implementation
,
strings
800
x18161
1805B
The String Has a Target
greedy
,
strings
800
x18196
1673A
Subtle Substring Subtraction
games
,
greedy
,
strings
800
x18237
1216A
Prefixes
strings
800
x18393
1796A
Typical Interview Problem
brute force
,
implementation
,
strings
800
x18582
1167A
Telephone Number
brute force
,
greedy
,
strings
800
x18803
1144A
Diverse Strings
implementation
,
strings
800
x18866
1682A
Palindromic Indices
greedy
,
strings
800
x19044
1301A
Three Strings
implementation
,
strings
800
x19071
1825A
LuoTianyi and the Palindrome String
greedy
,
strings
800
x19307
855A
Tom Riddle's Diary
brute force
,
implementation
,
strings
800
x20201
1504A
Déjà Vu
constructive algorithms
,
strings
800
x21424
1146A
Love "A"
implementation
,
strings
800
x21460
1900A
Cover in Water
constructive algorithms
,
greedy
,
implementation
,
strings
800
x22277
1706A
Another String Minimization Problem
2-sat
,
constructive algorithms
,
greedy
,
string suffix structures
,
strings
800
x22588
1779A
Hall of Fame
constructive algorithms
,
greedy
,
strings
800
x22907
1795A
Two Towers
brute force
,
implementation
,
strings
800
x23268
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23503
1552A
Subsequence Permutation
sortings
,
strings
800
x23531
1634A
Reverse and Concatenate
greedy
,
strings
800
x23659
1539B
Love Song
dp
,
implementation
,
strings
800
x23825
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x24417
1481A
Space Navigation
greedy
,
strings
800
x24669
1832A
New Palindrome
strings
800
x24939
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25454
1935A
Entertainment in MAC
constructive algorithms
,
strings
800
x25642
1922A
Tricky Template
constructive algorithms
,
implementation
,
strings
800
x25932
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x25997
1846B
Rudolph and Tic-Tac-Toe
brute force
,
implementation
,
strings
800
x26154
1400A
String Similarity
constructive algorithms
,
strings
800
x26566
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x26620
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x27256
1881A
Don't Try to Count
brute force
,
strings
800
x27732
1971B
Different String
implementation
,
strings
800
x27956
1397A
Juggling Letters
greedy
,
strings
800
x28145
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28687
1759A
Yes-Yes?
implementation
,
strings
800
x28873
1220A
Cards
implementation
,
sortings
,
strings
800
x28898
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28919
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29284
1729B
Decode String
greedy
,
strings
800
x29456
1567A
Domino Disaster
implementation
,
strings
800
x29680
1914A
Problemsolving Log
implementation
,
strings
800
x29904
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x29931
1800A
Is It a Cat?
implementation
,
strings
800
x30081
1811A
Insert Digit
greedy
,
math
,
strings
800
x30120
1303A
Erasing Zeroes
implementation
,
strings
800
x30653
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30960
1833A
Musical Puzzle
implementation
,
strings
800
x31667
1840A
Cipher Shifer
implementation
,
strings
,
two pointers
800
x32726
1931A
Recovering a Small String
brute force
,
strings
800
x33764
1650A
Deletions of Two Adjacent Letters
implementation
,
strings
800
x33963
1703C
Cypher
brute force
,
implementation
,
strings
800
x34296
978B
File Name
greedy
,
strings
800
x35111
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35742
1607A
Linear Keyboard
implementation
,
strings
800
x36167
1579A
Casimir's String Solitaire
math
,
strings
800
x37892
1927A
Make it White
greedy
,
strings
800
x39962
1850C
Word on the Paper
implementation
,
strings
800
x41388
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41982
731A
Night at the Museum
implementation
,
strings
800
x43371
1829A
Love Story
implementation
,
strings
800
x46248
1619A
Square String?
implementation
,
strings
800
x48714
1367A
Short Substrings
implementation
,
strings
800
x55025
1791A
Codeforces Checking
implementation
,
strings
800
x55474
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x63341
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x78256
785A
Anton and Polyhedrons
implementation
,
strings
800
x82728
520A
Pangram
implementation
,
strings
800
x90357
41A
Translation
implementation
,
strings
800
x135819
734A
Anton and Danik
implementation
,
strings
800
x141154
59A
Word
implementation
,
strings
800
x163225
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x194618
281A
Word Capitalization
implementation
,
strings
800
x197326
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x199494
112A
Petya and Strings
implementation
,
strings
800
x210416
71A
Way Too Long Words
strings
800
x356010
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