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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
20:35:30
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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
1082A
Vasya and Book
implementation
,
math
1200
x8621
1081F
Tricky Interactor
constructive algorithms
,
implementation
,
interactive
2600
x475
1081B
Farewell Party
constructive algorithms
,
implementation
1500
x4465
1080D
Olya and magical square
constructive algorithms
,
implementation
,
math
2000
x1561
1080C
Masha and two friends
implementation
1500
x4059
1076B
Divisor Subtraction
implementation
,
math
,
number theory
1200
x13118
1075B
Taxi drivers and Lyft
implementation
,
sortings
1200
x4262
1075A
The King's Race
implementation
,
math
800
x8565
1073B
Vasya and Books
implementation
,
math
1000
x10600
1073A
Diverse Substring
implementation
,
strings
1000
x15621
1070K
Video Posts
implementation
1100
x4955
1070H
BerOS File Suggestion
brute force
,
implementation
1500
x3666
1070G
Monsters and Potions
brute force
,
dp
,
greedy
,
implementation
2300
x844
1066E
Binary Numbers AND Sum
data structures
,
implementation
,
math
1700
x6190
1066D
Boxes Packing
binary search
,
implementation
1800
x5508
1066C
Books Queries
implementation
1400
x9711
1065A
Vasya and Chocolate
implementation
,
math
800
x14693
1062D
Fun with Integers
dfs and similar
,
graphs
,
implementation
,
math
1800
x3969
1062C
Banh-mi
greedy
,
implementation
,
math
1600
x5475
1062A
A Prank
greedy
,
implementation
1300
x8833
1061D
TV Shows
data structures
,
greedy
,
implementation
,
sortings
2000
x2377
1061C
Multiplicity
data structures
,
dp
,
implementation
,
math
,
number theory
1700
x9024
1061B
Views Matter
greedy
,
implementation
,
sortings
1400
x7317
1061A
Coins
greedy
,
implementation
,
math
800
x22094
1060C
Maximum Subrectangle
binary search
,
implementation
,
two pointers
1600
x4910
1059B
Forgery
implementation
1300
x7094
1059A
Cashier
implementation
1000
x12898
1056C
Pick Heroes
greedy
,
implementation
,
interactive
,
sortings
1700
x2384
1056A
Determine Line
implementation
800
x6729
1055D
Refactoring
greedy
,
implementation
,
strings
2400
x628
1055B
Alice and Hairdresser
dsu
,
implementation
1300
x5030
1054E
Chips Puzzle
constructive algorithms
,
implementation
,
math
2400
x488
1054D
Changing Array
greedy
,
implementation
1900
x2260
1054C
Candies Distribution
constructive algorithms
,
implementation
1500
x4295
1054B
Appending Mex
implementation
1000
x6610
1054A
Elevator or Stairs?
implementation
800
x9105
1051C
Vasya and Multisets
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9304
1051A
Vasya And Password
greedy
,
implementation
,
strings
1200
x8432
1046F
Splitting money
implementation
1400
x2797
1044E
Grid Sort
implementation
3100
x119
1043C
Smallest Word
constructive algorithms
,
greedy
,
implementation
1500
x6900
1043B
Lost Array
implementation
1200
x6305
1043A
Elections
implementation
,
math
800
x10823
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x16337
1042A
Benches
binary search
,
implementation
1100
x12978
1041A
Heist
greedy
,
implementation
,
sortings
800
x25238
1038D
Slime
dp
,
greedy
,
implementation
1800
x8419
1038A
Equality
implementation
,
strings
800
x14969
1033A
King Escape
dfs and similar
,
graphs
,
implementation
1000
x13815
1032D
Barcelonian Distance
geometry
,
implementation
1900
x2841
1031A
Golden Plate
implementation
,
math
800
x12918
1030C
Vasya and Golden Ticket
implementation
1300
x9467
1030A
In Search of an Easy Problem
implementation
800
x134671
1029D
Concatenated Multiples
implementation
,
math
1900
x3894
1029A
Many Equal Substrings
implementation
,
strings
1300
x12389
1028C
Rectangles
geometry
,
implementation
,
sortings
1600
x4612
1028A
Find Square
implementation
800
x10911
1027B
Numbers on the Chessboard
implementation
,
math
1200
x8401
1027A
Palindromic Twist
implementation
,
strings
1000
x16429
1025E
Colored Cubes
constructive algorithms
,
implementation
,
matrices
2700
x571
1025C
Plasticine zebra
constructive algorithms
,
implementation
1600
x6144
1025A
Doggo Recoloring
implementation
,
sortings
900
x15216
1023A
Single Wildcard Pattern Matching
brute force
,
implementation
,
strings
1200
x8715
1017B
The Bits
implementation
,
math
1200
x9165
1017A
The Rank
implementation
800
x20567
1016C
Vasya And The Mushrooms
dp
,
implementation
1800
x3770
1016B
Segment Occurrences
brute force
,
implementation
1300
x9517
1016A
Death Note
greedy
,
implementation
,
math
900
x14949
1015B
Obtaining the String
implementation
1200
x11629
1015A
Points in Segments
implementation
800
x21065
1012F
Passports
dp
,
implementation
3400
x158
1012A
Photo of The Sky
brute force
,
implementation
,
math
,
sortings
1500
x6435
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x10195
1011A
Stages
greedy
,
implementation
,
sortings
900
x12274
1010D
Mars rover
dfs and similar
,
graphs
,
implementation
,
trees
2000
x2388
1009B
Minimum Ternary String
greedy
,
implementation
1400
x10162
1009A
Game Shopping
implementation
800
x11824
1008A
Romaji
implementation
,
strings
900
x15151
1006D
Two Strings Swaps
implementation
1700
x6014
1006B
Polycarp's Practice
greedy
,
implementation
,
sortings
1200
x13355
1006A
Adjacent Replacements
implementation
800
x21686
1005C
Summarize to the Power of Two
brute force
,
greedy
,
implementation
1300
x11754
1005B
Delete from the Left
brute force
,
implementation
,
strings
900
x23676
1005A
Tanya and Stairways
implementation
800
x24007
1004D
Sonya and Matrix
brute force
,
constructive algorithms
,
implementation
2300
x1428
1004C
Sonya and Robots
constructive algorithms
,
implementation
1400
x7543
1004B
Sonya and Exhibition
constructive algorithms
,
greedy
,
implementation
,
math
1300
x9520
1004A
Sonya and Hotels
implementation
900
x11264
1003C
Intense Heat
brute force
,
implementation
,
math
1300
x10646
1003A
Polycarp's Pockets
implementation
800
x27328
1000C
Covered Points Count
data structures
,
implementation
,
sortings
1700
x6834
1000A
Codehorses T-shirts
greedy
,
implementation
1200
x8831
999D
Equalize the Remainders
data structures
,
greedy
,
implementation
1900
x4397
999C
Alphabetic Removals
implementation
1200
x18498
999B
Reversing Encryption
implementation
900
x17684
999A
Mishka and Contest
brute force
,
implementation
800
x23176
998A
Balloons
constructive algorithms
,
implementation
1000
x9642
997A
Convert to Ones
brute force
,
greedy
,
implementation
,
math
1500
x8336
995B
Suit and Tie
greedy
,
implementation
,
math
1400
x7112
995A
Tesla
constructive algorithms
,
implementation
2100
x1701
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