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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
33:55:15
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Difficulty:
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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
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Custom test
Problems
#
Name
71A
Way Too Long Words
strings
800
x347082
112A
Petya and Strings
implementation
,
strings
800
x205589
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x194917
281A
Word Capitalization
implementation
,
strings
800
x192782
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x189578
118A
String Task
implementation
,
strings
1000
x178862
59A
Word
implementation
,
strings
800
x158980
96A
Football
implementation
,
strings
900
x146946
734A
Anton and Danik
implementation
,
strings
800
x137351
41A
Translation
implementation
,
strings
800
x132462
58A
Chat room
greedy
,
strings
1000
x120601
520A
Pangram
implementation
,
strings
800
x87877
208A
Dubstep
strings
900
x82397
785A
Anton and Polyhedrons
implementation
,
strings
800
x80596
131A
cAPS lOCK
implementation
,
strings
1000
x80220
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x76797
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x60757
1367A
Short Substrings
implementation
,
strings
800
x54130
1791A
Codeforces Checking
implementation
,
strings
800
x53358
43A
Football
strings
1000
x51127
1619A
Square String?
implementation
,
strings
800
x47494
1829A
Love Story
implementation
,
strings
800
x44396
1374C
Move Brackets
greedy
,
strings
1000
x42542
731A
Night at the Museum
implementation
,
strings
800
x42536
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x40915
1850C
Word on the Paper
implementation
,
strings
800
x39838
1927A
Make it White
greedy
,
strings
800
x38505
1579A
Casimir's String Solitaire
math
,
strings
800
x37479
499B
Lecture
implementation
,
strings
1000
x37038
977B
Two-gram
implementation
,
strings
900
x35966
550A
Two Substrings
brute force
,
dp
,
greedy
,
implementation
,
strings
1500
x35878
1607A
Linear Keyboard
implementation
,
strings
800
x35718
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35289
978B
File Name
greedy
,
strings
800
x34488
1703C
Cypher
brute force
,
implementation
,
strings
800
x33701
1650A
Deletions of Two Adjacent Letters
implementation
,
strings
800
x33607
1931A
Recovering a Small String
brute force
,
strings
800
x32614
1840A
Cipher Shifer
implementation
,
strings
,
two pointers
800
x32120
1833A
Musical Puzzle
implementation
,
strings
800
x31206
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30174
1303A
Erasing Zeroes
implementation
,
strings
800
x30075
1811A
Insert Digit
greedy
,
math
,
strings
800
x29675
1567A
Domino Disaster
implementation
,
strings
800
x29494
1800A
Is It a Cat?
implementation
,
strings
800
x29479
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x29383
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x29338
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x29334
1914A
Problemsolving Log
implementation
,
strings
800
x28995
1729B
Decode String
greedy
,
strings
800
x28968
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x28804
1220A
Cards
implementation
,
sortings
,
strings
800
x28638
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28487
1759A
Yes-Yes?
implementation
,
strings
800
x28434
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x28426
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28405
1397A
Juggling Letters
greedy
,
strings
800
x27999
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x27607
1324B
Yet Another Palindrome Problem
brute force
,
strings
1100
x27248
1915D
Unnatural Language Processing
greedy
,
implementation
,
strings
900
x26753
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x26624
1400A
String Similarity
constructive algorithms
,
strings
800
x26448
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x26411
1881A
Don't Try to Count
brute force
,
strings
800
x26155
1791D
Distinct Split
brute force
,
greedy
,
strings
1000
x26046
746B
Decoding
implementation
,
strings
900
x25847
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x25833
1846B
Rudolph and Tic-Tac-Toe
brute force
,
implementation
,
strings
800
x25713
219A
k-String
implementation
,
strings
1000
x25654
1922A
Tricky Template
constructive algorithms
,
implementation
,
strings
800
x25436
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25335
1883B
Chemistry
strings
900
x25305
1481A
Space Navigation
greedy
,
strings
800
x24578
1832A
New Palindrome
strings
800
x24469
1935A
Entertainment in MAC
constructive algorithms
,
strings
800
x24176
1758A
SSeeeeiinngg DDoouubbllee
constructive algorithms
,
strings
800
x24174
1703D
Double Strings
brute force
,
data structures
,
strings
1100
x23798
1800B
Count the Number of Pairs
greedy
,
strings
1000
x23651
1369B
AccurateLee
greedy
,
implementation
,
strings
1200
x23634
1539B
Love Song
dp
,
implementation
,
strings
800
x23606
1634A
Reverse and Concatenate
greedy
,
strings
800
x23581
1552A
Subsequence Permutation
sortings
,
strings
800
x23433
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23373
1795A
Two Towers
brute force
,
implementation
,
strings
800
x23131
1342B
Binary Period
constructive algorithms
,
strings
1100
x23087
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x22894
1779A
Hall of Fame
constructive algorithms
,
greedy
,
strings
800
x22838
1363B
Subsequence Hate
implementation
,
strings
1400
x22709
1674C
Infinite Replacement
combinatorics
,
implementation
,
strings
1000
x22693
1907B
YetnotherrokenKeoard
data structures
,
implementation
,
strings
1000
x22553
1706A
Another String Minimization Problem
2-sat
,
constructive algorithms
,
greedy
,
string suffix structures
,
strings
800
x22476
1606A
AB Balance
strings
900
x22279
1626B
Minor Reduction
greedy
,
strings
1100
x22178
1005B
Delete from the Left
brute force
,
implementation
,
strings
900
x22012
508B
Anton and currency you all know
greedy
,
math
,
strings
1300
x21938
1800D
Remove Two Letters
data structures
,
greedy
,
hashing
,
strings
1200
x21327
1504A
Déjà Vu
constructive algorithms
,
strings
800
x21319
1146A
Love "A"
implementation
,
strings
800
x21147
798A
Mike and palindrome
brute force
,
constructive algorithms
,
strings
1000
x20782
1860A
Not a Substring
constructive algorithms
,
strings
900
x20495
1913B
Swap and Delete
strings
1000
x20364
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