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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
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math
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Problems
#
Name
1492A
Three swimmers
math
800
x22748
1491A
K-th Largest Value
brute force
,
greedy
,
implementation
800
x18287
1490A
Dense Array
greedy
,
math
800
x31301
1487A
Arena
implementation
,
sortings
800
x26611
1482A
Prison Break
math
800
x20508
1481A
Space Navigation
greedy
,
strings
800
x25003
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25966
1478A
Nezzar and Colorful Balls
brute force
,
greedy
800
x26591
1474A
Puzzle From the Future
greedy
800
x22646
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x34014
1472B
Fair Division
dp
,
greedy
,
math
800
x51236
1472A
Cards for Friends
greedy
,
math
800
x42234
1468E
Four Segments
greedy
800
x8877
1466B
Last minute enhancements
dp
,
greedy
800
x22730
1466A
Bovine Dilemma
brute force
,
geometry
,
math
800
x22604
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x27473
1462A
Favorite Sequence
implementation
,
two pointers
800
x42318
1461A
String Generation
constructive algorithms
,
greedy
800
x18604
1459A
Red-Blue Shuffle
math
,
probabilities
800
x17042
1455A
Strange Functions
math
,
number theory
800
x26545
1454B
Unique Bid Auction
implementation
800
x28642
1454A
Special Permutation
constructive algorithms
,
probabilities
800
x40861
1453A
Cancel the Trains
implementation
800
x22696
1452C
Two Brackets
greedy
800
x19688
1452A
Robot Program
math
800
x22187
1451A
Subtract or Divide
greedy
,
math
800
x24331
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x18016
1447A
Add Candies
constructive algorithms
,
math
800
x13843
1445A
Array Rearrangment
greedy
,
sortings
800
x19136
1443A
Kids Seating
constructive algorithms
,
math
800
x16252
1440A
Buy the String
implementation
,
math
800
x19796
1438A
Specific Tastes of Andre
constructive algorithms
,
implementation
800
x19292
1437A
Marketing Scheme
brute force
,
constructive algorithms
,
greedy
,
math
800
x18039
1436A
Reorder
math
800
x22742
1433B
Yet Another Bookshelf
greedy
,
implementation
800
x28671
1433A
Boring Apartments
implementation
,
math
800
x53219
1431A
Selling Hamburgers
*special problem
800
x1909
1430B
Barrels
greedy
,
implementation
,
sortings
800
x19430
1428A
Box is Pull
math
800
x16350
1426A
Floor Number
implementation
,
math
800
x48631
1422A
Fence
geometry
,
math
800
x21027
1421A
XORwice
bitmasks
,
greedy
,
math
800
x29395
1417A
Copy-paste
greedy
,
math
800
x18301
1415A
Prison Break
brute force
,
math
800
x15208
1413A
Finding Sasuke
constructive algorithms
,
math
800
x14825
1411A
In-game Chat
implementation
800
x20701
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x67364
1408A
Circle Coloring
constructive algorithms
800
x12514
1405A
Permutation Forgery
constructive algorithms
800
x21490
1400A
String Similarity
constructive algorithms
,
strings
800
x27083
1399B
Gifts Fixing
greedy
800
x43802
1399A
Remove Smallest
greedy
,
sortings
800
x67548
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24731
1398A
Bad Triangle
geometry
,
math
800
x27720
1397A
Juggling Letters
greedy
,
strings
800
x28744
1393A
Rainbow Dash, Fluttershy and Chess Coloring
greedy
,
math
800
x20554
1392B
Omkar and Infinity Clock
implementation
,
math
800
x18506
1392A
Omkar and Password
greedy
,
math
800
x20808
1391B
Fix You
brute force
,
greedy
,
implementation
800
x27485
1391A
Suborrays
constructive algorithms
,
math
800
x24453
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x41983
1388A
Captain Flint and Crew Recruitment
brute force
,
greedy
,
math
,
number theory
800
x25015
1385B
Restore the Permutation by Merger
greedy
800
x37361
1385A
Three Pairwise Maximums
math
800
x39483
1382A
Common Subsequence
brute force
800
x26589
1374A
Required Remainder
math
800
x54497
1372A
Omkar and Completion
constructive algorithms
,
implementation
800
x32047
1371A
Magical Sticks
math
800
x46480
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x52969
1369A
FashionabLee
geometry
,
math
800
x36778
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x39931
1367B
Even Array
greedy
,
math
800
x54316
1367A
Short Substrings
implementation
,
strings
800
x58126
1360B
Honest Coach
greedy
,
sortings
800
x48361
1360A
Minimal Square
greedy
,
math
800
x51203
1358A
Park Lighting
greedy
,
math
800
x39740
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x50428
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x41209
1352A
Sum of Round Numbers
implementation
,
math
800
x81300
1351A
A+B (Trial Problem)
implementation
800
x24246
1348A
Phoenix and Balance
greedy
,
math
800
x39795
1345A
Puzzle Pieces
math
800
x24245
1343B
Balanced Array
constructive algorithms
,
math
800
x57158
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x38651
1335A
Candies and Two Sisters
math
800
x86246
1328A
Divisibility Problem
math
800
x104755
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x36236
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x40551
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19880
1316A
Grade Allocation
implementation
800
x18732
1315A
Dead Pixel
implementation
800
x12174
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x26039
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x42359
1307A
Cow and Haybales
greedy
,
implementation
800
x14997
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x14139
1304A
Two Rabbits
math
800
x25607
1303A
Erasing Zeroes
implementation
,
strings
800
x32590
1301A
Three Strings
implementation
,
strings
800
x19437
1300A
Non-zero
implementation
,
math
800
x21076
1296A
Array with Odd Sum
math
800
x42399
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