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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
22:38:35
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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
780A
Andryusha and Socks
implementation
800
x19834
779A
Pupils Redistribution
constructive algorithms
,
math
1000
x9338
777A
Shell Game
constructive algorithms
,
implementation
,
math
1000
x10310
776A
A Serial Killer
brute force
,
implementation
,
strings
900
x12165
770A
New Password
*special problem
,
implementation
800
x20042
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x5790
768A
Oath of the Night's Watch
constructive algorithms
,
sortings
900
x27755
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x33218
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x30744
765A
Neverending competitions
implementation
,
math
900
x9034
764B
Timofey and cubes
constructive algorithms
,
implementation
900
x11897
764A
Taymyr is calling you
brute force
,
implementation
,
math
800
x16372
761A
Dasha and Stairs
brute force
,
constructive algorithms
,
implementation
,
math
1000
x14550
760A
Petr and a calendar
implementation
,
math
800
x8218
758A
Holiday Of Equality
implementation
,
math
800
x61780
757A
Gotta Catch Em' All!
implementation
1000
x11280
755A
PolandBall and Hypothesis
brute force
,
graphs
,
math
,
number theory
800
x18159
753A
Santa Claus and Candies
dp
,
greedy
,
math
1000
x9118
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x76630
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x49990
748A
Santa Claus and a Place in a Class
implementation
,
math
800
x9017
747B
Mammoth's Genome Decoding
implementation
,
strings
900
x8920
747A
Display Size
brute force
,
math
800
x10287
746B
Decoding
implementation
,
strings
900
x28261
746A
Compote
implementation
,
math
800
x21581
745A
Hongcow Learns the Cyclic Shift
implementation
,
strings
900
x10488
742A
Arpa’s hard exam and Mehrdad’s naive cheat
implementation
,
math
,
number theory
1000
x43108
735A
Ostap and Grasshopper
implementation
,
strings
800
x12518
734B
Anton and Digits
brute force
,
greedy
,
implementation
,
math
800
x29486
734A
Anton and Danik
implementation
,
strings
800
x155076
733A
Grasshopper And the String
implementation
1000
x16183
732B
Cormen --- The Best Friend Of a Man
dp
,
greedy
1000
x24651
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x73321
731A
Night at the Museum
implementation
,
strings
800
x46267
729A
Interview with Oleg
implementation
,
strings
900
x7505
727A
Transformation: from A to B
brute force
,
dfs and similar
,
math
1000
x14061
725A
Jumping Ball
implementation
1000
x7095
724A
Checking the Calendar
implementation
1000
x7104
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x79789
721A
One-dimensional Japanese Crossword
implementation
800
x18615
716A
Crazy Computer
implementation
800
x22482
712A
Memory and Crow
implementation
,
math
800
x11913
711A
Bus to Udayland
brute force
,
implementation
800
x29552
710A
King Moves
implementation
800
x13855
709A
Juicer
implementation
900
x32618
707A
Brain's Photos
implementation
800
x49610
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14528
705A
Hulk
implementation
800
x108369
703A
Mishka and Game
implementation
800
x57269
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x45573
701A
Cards
greedy
,
implementation
800
x19690
699A
Launch of Collider
implementation
1000
x16029
697A
Pineapple Incident
implementation
,
math
900
x12827
691A
Fashion in Berland
implementation
1000
x10232
688B
Lovely Palindromes
constructive algorithms
,
math
1000
x32427
688A
Opponents
implementation
800
x14026
686A
Free Ice Cream
constructive algorithms
,
implementation
800
x37966
681A
A Good Contest
implementation
800
x15550
680B
Bear and Finding Criminals
constructive algorithms
,
implementation
1000
x24477
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x12545
678A
Johny Likes Numbers
implementation
,
math
800
x13370
677A
Vanya and Fence
implementation
800
x143952
676A
Nicholas and Permutation
constructive algorithms
,
implementation
800
x13855
673A
Bear and Game
implementation
800
x10090
672B
Different is Good
constructive algorithms
,
implementation
,
strings
1000
x17440
672A
Summer Camp
implementation
800
x15377
670B
Game of Robots
implementation
1000
x11292
670A
Holidays
brute force
,
constructive algorithms
,
greedy
,
math
900
x17080
669A
Little Artem and Presents
math
800
x10859
664A
Complicated GCD
math
,
number theory
800
x18399
660B
Seating On Bus
implementation
1000
x5383
659A
Round House
implementation
,
math
1000
x15880
658A
Bear and Reverse Radewoosh
implementation
800
x7101
653A
Bear and Three Balls
brute force
,
implementation
,
sortings
900
x8251
652B
z-sort
sortings
1000
x10344
649A
Любимые числа Поликарпа
constructive algorithms
,
implementation
1000
x1301
648B
Собери стол
constructive algorithms
,
sortings
800
x1538
648A
Наибольший подъем
constructive algorithms
,
implementation
900
x711
644A
Parliament of Berland
*special problem
,
constructive algorithms
1000
x4459
641A
Little Artem and Grasshopper
implementation
1000
x5950
637A
Voting for Photos
*special problem
,
constructive algorithms
,
implementation
1000
x5418
631A
Interview
brute force
,
implementation
900
x9339
630A
Again Twenty Five!
number theory
800
x69821
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x13472
628A
Tennis Tournament
implementation
,
math
1000
x6415
626A
Robot Sequence
brute force
,
implementation
1000
x6268
624A
Save Luke
math
800
x10375
622B
The Time
implementation
900
x9679
622A
Infinite Sequence
implementation
,
math
1000
x9418
621A
Wet Shark and Odd and Even
implementation
900
x20718
620B
Grandfather Dovlet’s calculator
implementation
1000
x9646
620A
Professor GukiZ's Robot
implementation
,
math
800
x13286
618A
Slime Combining
implementation
800
x8358
617A
Elephant
math
800
x189982
616B
Dinner with Emma
games
,
greedy
1000
x11993
616A
Comparing Two Long Integers
implementation
,
strings
900
x9952
615A
Bulbs
implementation
800
x17500
611A
New Year and Days
implementation
900
x11663
610A
Pasha and Stick
combinatorics
,
math
1000
x23505
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x17432
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