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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
5 days
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→ Filter Problems
Difficulty:
—
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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Problems
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Status
Standings
Custom test
Problems
#
Name
282A
Bit++
implementation
800
x237972
158A
Next Round
*special problem
,
implementation
800
x233681
263A
Beautiful Matrix
implementation
800
x226135
112A
Petya and Strings
implementation
,
strings
800
x210321
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x199411
281A
Word Capitalization
implementation
,
strings
800
x197252
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x194542
791A
Bear and Big Brother
implementation
800
x180137
266A
Stones on the Table
implementation
800
x178995
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x168763
59A
Word
implementation
,
strings
800
x163158
977A
Wrong Subtraction
implementation
800
x155894
110A
Nearly Lucky Number
implementation
800
x143402
734A
Anton and Danik
implementation
,
strings
800
x141101
41A
Translation
implementation
,
strings
800
x135754
116A
Tram
implementation
800
x132781
677A
Vanya and Fence
implementation
800
x131457
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x127408
1030A
In Search of an Easy Problem
implementation
800
x120722
467A
George and Accommodation
implementation
800
x114405
344A
Magnets
implementation
800
x112444
486A
Calculating Function
implementation
,
math
800
x109989
136A
Presents
implementation
800
x109729
200B
Drinks
implementation
,
math
800
x108400
61A
Ultra-Fast Mathematician
implementation
800
x104145
228A
Is your horseshoe on the other hoof?
implementation
800
x102548
705A
Hulk
implementation
800
x99900
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91814
520A
Pangram
implementation
,
strings
800
x90330
144A
Arrival of the General
implementation
800
x89463
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87513
443A
Anton and Letters
constructive algorithms
,
implementation
800
x84360
785A
Anton and Polyhedrons
implementation
,
strings
800
x82696
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x78225
510A
Fox And Snake
implementation
800
x77507
427A
Police Recruits
implementation
800
x72858
1352A
Sum of Round Numbers
implementation
,
math
800
x72522
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x71254
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x71247
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67689
581A
Vasya the Hipster
implementation
,
math
800
x67418
151A
Soft Drinking
implementation
,
math
800
x66255
1742A
Sum
implementation
800
x65247
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x63296
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60749
1692A
Marathon
implementation
800
x60342
1512A
Spy Detected!
brute force
,
implementation
800
x60217
32B
Borze
expression parsing
,
implementation
800
x59136
1676A
Lucky?
implementation
800
x58445
1669A
Division?
implementation
800
x57594
758A
Holiday Of Equality
implementation
,
math
800
x57579
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56858
1807A
Plus or Minus
implementation
800
x56296
1560A
Dislike of Threes
implementation
800
x56153
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55783
1791A
Codeforces Checking
implementation
,
strings
800
x55437
1367A
Short Substrings
implementation
,
strings
800
x55015
1760A
Medium Number
implementation
,
sortings
800
x54246
703A
Mishka and Game
implementation
800
x53768
431A
Black Square
implementation
800
x51738
1850A
To My Critics
implementation
,
sortings
800
x51547
1915A
Odd One Out
bitmasks
,
implementation
800
x50236
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x49853
1433A
Boring Apartments
implementation
,
math
800
x49498
1873A
Short Sort
brute force
,
implementation
800
x49151
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x49073
1619A
Square String?
implementation
,
strings
800
x48699
1722A
Spell Check
implementation
800
x47225
492A
Vanya and Cubes
implementation
800
x46979
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46758
1535A
Fair Playoff
brute force
,
implementation
800
x46605
707A
Brain's Photos
implementation
800
x46521
1829A
Love Story
implementation
,
strings
800
x46218
1426A
Floor Number
implementation
,
math
800
x45720
1703B
ICPC Balloons
data structures
,
implementation
800
x45686
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44760
1950A
Stair, Peak, or Neither?
implementation
800
x44553
1772A
A+B?
implementation
800
x44293
1722B
Colourblindness
implementation
800
x43442
731A
Night at the Museum
implementation
,
strings
800
x43357
1926A
Vlad and the Best of Five
implementation
800
x42510
1791B
Following Directions
geometry
,
implementation
800
x42035
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41966
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41699
935A
Fafa and his Company
brute force
,
implementation
800
x41637
1850C
Word on the Paper
implementation
,
strings
800
x41371
1829B
Blank Space
implementation
800
x41131
1791C
Prepend and Append
implementation
,
two pointers
800
x40884
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40759
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x40595
233A
Perfect Permutation
implementation
,
math
800
x40584
1669B
Triple
implementation
,
sortings
800
x40156
1462A
Favorite Sequence
implementation
,
two pointers
800
x40112
1915B
Not Quite Latin Square
bitmasks
,
brute force
,
implementation
800
x38812
1915C
Can I Square?
binary search
,
implementation
800
x37879
509A
Maximum in Table
brute force
,
implementation
800
x37327
1097A
Gennady and a Card Game
brute force
,
implementation
800
x37160
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36959
1186A
Vus the Cossack and a Contest
implementation
800
x36316
1607A
Linear Keyboard
implementation
,
strings
800
x36165
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