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brute force
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
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number theory
probabilities
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ternary search
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Problems
#
Name
1703D
Double Strings
brute force
,
data structures
,
strings
1100
x24387
224A
Parallelepiped
brute force
,
geometry
,
math
1100
x25392
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x25484
463B
Caisa and Pylons
brute force
,
implementation
,
math
1100
x25844
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x26898
1324B
Yet Another Palindrome Problem
brute force
,
strings
1100
x27494
1409B
Minimum Product
brute force
,
greedy
,
math
1100
x28257
1490C
Sum of Cubes
binary search
,
brute force
,
brute force
,
math
1100
x31436
467B
Fedor and New Game
bitmasks
,
brute force
,
constructive algorithms
,
implementation
1100
x35970
363B
Fence
brute force
,
dp
1100
x49231
1769B1
Копирование файлов I
*special problem
,
brute force
,
implementation
,
math
1000
x1311
1906A
Easy As ABC
brute force
1000
x3538
120A
Elevator
brute force
,
implementation
,
math
1000
x4498
106B
Choosing Laptop
brute force
,
implementation
1000
x5937
626A
Robot Sequence
brute force
,
implementation
1000
x6145
284B
Cows and Poker Game
brute force
,
implementation
1000
x6667
357A
Group of Students
brute force
,
greedy
,
implementation
1000
x6693
859B
Lazy Security Guard
brute force
,
geometry
,
math
1000
x6742
29A
Spit Problem
brute force
1000
x6829
299A
Ksusha and Array
brute force
,
number theory
,
sortings
1000
x7750
1084A
The Fair Nut and Elevator
brute force
,
implementation
1000
x7815
452A
Eevee
brute force
,
implementation
,
strings
1000
x7901
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x8483
864B
Polycarp and Letters
brute force
,
implementation
,
strings
1000
x8879
816A
Karen and Morning
brute force
,
implementation
1000
x8897
259A
Little Elephant and Chess
brute force
,
strings
1000
x8932
909A
Generate Login
brute force
,
greedy
,
sortings
1000
x9154
822B
Crossword solving
brute force
,
implementation
,
strings
1000
x9322
1765E
Exchange
brute force
,
math
1000
x9536
886A
ACM ICPC
brute force
1000
x10087
893B
Beautiful Divisors
brute force
,
implementation
1000
x10958
1151A
Maxim and Biology
brute force
,
strings
1000
x10984
1153A
Serval and Bus
brute force
,
math
1000
x11327
535A
Tavas and Nafas
brute force
,
implementation
1000
x11823
122B
Lucky Substring
brute force
,
implementation
1000
x12010
143A
Help Vasilisa the Wise 2
brute force
,
math
1000
x13066
727A
Transformation: from A to B
brute force
,
dfs and similar
,
math
1000
x13205
1781B
Going to the Cinema
brute force
,
greedy
,
sortings
1000
x13224
1930B
Permutation Printing
brute force
,
constructive algorithms
,
math
1000
x13616
761A
Dasha and Stairs
brute force
,
constructive algorithms
,
implementation
,
math
1000
x14332
1732A
Bestie
brute force
,
combinatorics
,
constructive algorithms
,
implementation
,
math
,
number theory
1000
x14420
1784A
Monsters (easy version)
brute force
,
greedy
1000
x14506
1450B
Balls of Steel
brute force
,
geometry
,
greedy
1000
x14880
17A
Noldbach problem
brute force
,
math
,
number theory
1000
x15093
1244B
Rooms and Staircases
brute force
,
implementation
1000
x15126
1278A
Shuffle Hashing
brute force
,
implementation
,
strings
1000
x15717
1598B
Groups
brute force
,
implementation
1000
x15786
1798B
Three Sevens
brute force
,
data structures
,
greedy
,
implementation
1000
x15889
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x16225
1221A
2048 Game
brute force
,
greedy
,
math
1000
x16337
1704B
Luke is a Foodie
brute force
,
greedy
,
implementation
1000
x16368
462A
Appleman and Easy Task
brute force
,
implementation
1000
x16558
109A
Lucky Sum of Digits
brute force
,
implementation
1000
x16597
1411B
Fair Numbers
brute force
,
number theory
1000
x17819
1671B
Consecutive Points Segment
brute force
,
math
,
sortings
1000
x18122
1251A
Broken Keyboard
brute force
,
strings
,
two pointers
1000
x18817
1195B
Sport Mafia
binary search
,
brute force
,
math
1000
x19138
1562B
Scenes From a Memory
brute force
,
constructive algorithms
,
implementation
,
math
,
number theory
1000
x19175
1020B
Badge
brute force
,
dfs and similar
,
graphs
1000
x20213
1499B
Binary Removals
brute force
,
dp
,
greedy
,
implementation
1000
x20262
1485A
Add and Divide
brute force
,
greedy
,
math
,
number theory
1000
x20833
798A
Mike and palindrome
brute force
,
constructive algorithms
,
strings
1000
x21068
1770A
Koxia and Whiteboards
brute force
,
greedy
1000
x22899
1790C
Premutation
brute force
,
implementation
,
math
1000
x22951
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x23406
1395A
Boboniu Likes to Color Balls
brute force
,
math
1000
x23440
1676D
X-Sum
brute force
,
greedy
,
implementation
1000
x24034
1515B
Phoenix and Puzzle
brute force
,
geometry
,
math
,
number theory
1000
x24159
1829D
Gold Rush
brute force
,
dfs and similar
,
dp
,
implementation
1000
x24242
1607C
Minimum Extraction
brute force
,
sortings
1000
x24339
352A
Jeff and Digits
brute force
,
implementation
,
math
1000
x24648
1927C
Choose the Different Ones!
brute force
,
greedy
,
math
1000
x25571
1490B
Balanced Remainders
brute force
,
constructive algorithms
,
math
1000
x25603
1931C
Make Equal Again
brute force
,
greedy
,
math
1000
x26062
1941B
Rudolf and 121
brute force
,
dp
,
greedy
,
math
1000
x26405
1791D
Distinct Split
brute force
,
greedy
,
strings
1000
x26967
1359B
New Theatre Square
brute force
,
dp
,
greedy
,
implementation
,
two pointers
1000
x27075
1359A
Berland Poker
brute force
,
greedy
,
math
1000
x28764
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x29710
479A
Expression
brute force
,
math
1000
x88811
122A
Lucky Division
brute force
,
number theory
1000
x116262
299B
Ksusha the Squirrel
brute force
,
implementation
900
x5124
653A
Bear and Three Balls
brute force
,
implementation
,
sortings
900
x8004
916A
Jamie and Alarm Snooze
brute force
,
implementation
,
math
900
x8478
868A
Bark to Unlock
brute force
,
implementation
,
strings
900
x8522
981A
Antipalindrome
brute force
,
implementation
,
strings
900
x9049
631A
Interview
brute force
,
implementation
900
x9130
870A
Search for Pretty Integers
brute force
,
implementation
900
x9956
863A
Quasi-palindrome
brute force
,
implementation
900
x9967
776A
A Serial Killer
brute force
,
implementation
,
strings
900
x11840
554A
Kyoya and Photobooks
brute force
,
math
,
strings
900
x12722
841A
Generous Kefa
brute force
,
implementation
900
x12931
948A
Protect Sheep
brute force
,
dfs and similar
,
graphs
,
implementation
900
x13388
914A
Perfect Squares
brute force
,
implementation
,
math
900
x13805
215A
Bicycle Chain
brute force
,
implementation
900
x13914
1732B
Ugu
brute force
,
dp
,
greedy
,
implementation
900
x14015
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14257
1313A
Fast Food Restaurant
brute force
,
greedy
,
implementation
900
x15189
1823B
Sort with Step
brute force
,
math
,
sortings
900
x15325
1904A
Forked!
brute force
,
implementation
900
x15867
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