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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
09:02:45
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→ Filter Problems
Difficulty:
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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
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x185764
540A
Combination Lock
implementation
800
x32835
520A
Pangram
implementation
,
strings
800
x99307
513A
Game
constructive algorithms
,
math
800
x20476
510A
Fox And Snake
implementation
800
x85078
509A
Maximum in Table
brute force
,
implementation
800
x38682
492A
Vanya and Cubes
implementation
800
x51295
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x60037
486A
Calculating Function
implementation
,
math
800
x120985
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x60798
469A
I Wanna Be the Guy
greedy
,
implementation
800
x99191
467A
George and Accommodation
implementation
800
x124407
454A
Little Pony and Crystal Mine
implementation
800
x14897
448A
Rewards
implementation
800
x24534
447A
DZY Loves Hash
implementation
800
x9620
443A
Anton and Letters
constructive algorithms
,
implementation
800
x90997
440A
Forgotten Episode
implementation
800
x7517
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x60678
431A
Black Square
implementation
800
x55665
427A
Police Recruits
implementation
800
x79401
426A
Sereja and Mugs
implementation
800
x9255
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x6125
411A
Password Check
*special problem
,
implementation
800
x7282
401A
Vanya and Cards
implementation
,
math
800
x16328
386A
Second-Price Auction
implementation
800
x6450
384A
Coder
implementation
800
x16350
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x67408
378A
Playing with Dice
brute force
800
x24255
363A
Soroban
implementation
800
x10811
361A
Levko and Table
constructive algorithms
,
implementation
800
x16777
344A
Magnets
implementation
800
x122610
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x217927
330A
Cakeminator
brute force
,
implementation
800
x28823
306A
Candies
implementation
800
x7065
302A
Eugeny and Array
implementation
800
x9107
294A
Shaass and Oskols
implementation
,
math
800
x23810
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x6105
282A
Bit++
implementation
800
x268199
281A
Word Capitalization
implementation
,
strings
800
x215599
278A
Circle Line
implementation
800
x11747
271A
Beautiful Year
brute force
800
x140737
268A
Games
brute force
800
x87600
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x137099
266A
Stones on the Table
implementation
800
x194325
265A
Colorful Stones (Simplified Edition)
implementation
800
x37102
263A
Beautiful Matrix
implementation
800
x248979
262A
Roma and Lucky Numbers
implementation
800
x20063
255A
Greg's Workout
implementation
800
x28976
248A
Cupboards
implementation
800
x22557
245A
System Administrator
implementation
800
x8497
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x215138
233A
Perfect Permutation
implementation
,
math
800
x42991
231A
Team
brute force
,
greedy
800
x332800
228A
Is your horseshoe on the other hoof?
implementation
800
x111997
214A
System of Equations
brute force
800
x35831
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x17010
200B
Drinks
implementation
,
math
800
x118357
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x7219
177A2
Good Matrix Elements
implementation
800
x7375
177A1
Good Matrix Elements
implementation
800
x8786
172A
Phone Code
*special problem
,
brute force
,
implementation
800
x6168
169A
Chores
sortings
800
x6987
158A
Next Round
*special problem
,
implementation
800
x253825
157A
Game Outcome
brute force
800
x7682
155A
I_love_\%username\%
brute force
800
x76621
151A
Soft Drinking
implementation
,
math
800
x74712
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x93948
146A
Lucky Ticket
implementation
800
x15177
144A
Arrival of the General
implementation
800
x97463
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x84328
136A
Presents
implementation
800
x119548
119A
Epic Game
implementation
800
x27532
116A
Tram
implementation
800
x144411
112A
Petya and Strings
implementation
,
strings
800
x229161
110A
Nearly Lucky Number
implementation
800
x158060
104A
Blackjack
implementation
800
x15477
99A
Help Far Away Kingdom
strings
800
x6724
92A
Chips
implementation
,
math
800
x18962
80A
Panoramix's Prediction
brute force
800
x54518
78A
Haiku
implementation
,
strings
800
x12923
71A
Way Too Long Words
strings
800
x392071
61A
Ultra-Fast Mathematician
implementation
800
x112591
59A
Word
implementation
,
strings
800
x179227
50A
Domino piling
greedy
,
math
800
x251361
49A
Sleuth
implementation
800
x13505
47A
Triangular numbers
brute force
,
math
800
x15207
46A
Ball Game
brute force
,
implementation
800
x8798
41A
Translation
implementation
,
strings
800
x148877
38A
Army
implementation
800
x21513
34A
Reconnaissance 2
implementation
800
x30118
32B
Borze
expression parsing
,
implementation
800
x64773
32A
Reconnaissance
brute force
800
x12650
22A
Second Order Statistics
brute force
800
x22584
16A
Flag
implementation
800
x14496
14A
Letter
implementation
800
x10739
12A
Super Agent
implementation
800
x13218
9A
Die Roll
math
,
probabilities
800
x57553
4A
Watermelon
brute force
,
math
800
x536989
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