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Before contest
Codeforces Round 941 (Div. 1)
31:02:05
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*has extra registration
Before contest
Codeforces Round 941 (Div. 2)
31:02:05
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2-sat
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bitmasks
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constructive algorithms
data structures
dfs and similar
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dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
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number theory
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Problems
#
Name
231A
Team
brute force
,
greedy
800
x297860
50A
Domino piling
greedy
,
math
800
x227796
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197346
469A
I Wanna Be the Guy
greedy
,
implementation
800
x90963
996A
Hit the Lottery
dp
,
greedy
800
x83848
1399A
Remove Smallest
greedy
,
sortings
800
x62481
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62273
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x59932
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56470
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55256
1367B
Even Array
greedy
,
math
800
x50081
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48554
1551A
Polycarp and Coins
greedy
,
math
800
x48197
1360A
Minimal Square
greedy
,
math
800
x47875
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47414
1472B
Fair Division
dp
,
greedy
,
math
800
x47301
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46293
1360B
Honest Coach
greedy
,
sortings
800
x45916
1676B
Equal Candies
greedy
,
math
,
sortings
800
x44883
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44083
1873B
Good Kid
brute force
,
greedy
,
math
800
x43803
1857A
Array Coloring
greedy
,
math
800
x43113
1399B
Gifts Fixing
greedy
800
x42290
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41456
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41287
1472A
Cards for Friends
greedy
,
math
800
x40749
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40602
1921A
Square
greedy
,
math
800
x39627
1807B
Grab the Candies
greedy
800
x39565
1927A
Make it White
greedy
,
strings
800
x39334
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38889
1878A
How Much Does Daytona Cost?
greedy
800
x38354
1348A
Phoenix and Balance
greedy
,
math
800
x38301
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38218
1358A
Park Lighting
greedy
,
math
800
x38021
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x37994
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37115
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36660
1385B
Restore the Permutation by Merger
greedy
800
x36222
1537A
Arithmetic Array
greedy
,
math
800
x35867
1538A
Stone Game
brute force
,
dp
,
greedy
800
x35657
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35025
1660A
Vasya and Coins
greedy
,
math
800
x34941
978B
File Name
greedy
,
strings
800
x34894
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x34759
1858A
Buttons
games
,
greedy
,
math
800
x33934
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x32852
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32802
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32718
1692B
All Distinct
greedy
,
sortings
800
x32644
1690A
Print a Pedestal (Codeforces logo?)
constructive algorithms
,
greedy
800
x32457
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x32367
1921B
Arranging Cats
greedy
,
implementation
800
x31803
1675A
Food for Animals
greedy
,
math
800
x31400
1716A
2-3 Moves
greedy
,
math
800
x31299
1538B
Friends and Candies
greedy
,
math
800
x30967
1490A
Dense Array
greedy
,
math
800
x30574
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30561
1811A
Insert Digit
greedy
,
math
,
strings
800
x29939
1714C
Minimum Varied Number
greedy
800
x29872
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29789
1931B
Make Equal
greedy
800
x29744
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29347
1729B
Decode String
greedy
,
strings
800
x29296
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x29234
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29067
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x28958
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x28928
1919B
Plus-Minus Split
greedy
800
x28714
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28675
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28662
1631A
Min Max Swap
greedy
800
x28607
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28604
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x28591
1554A
Cherry
greedy
800
x28547
1629A
Download More RAM
brute force
,
greedy
,
sortings
800
x28522
734B
Anton and Digits
brute force
,
greedy
,
implementation
,
math
800
x28476
1397A
Juggling Letters
greedy
,
strings
800
x28091
1851B
Parity Sort
greedy
,
sortings
,
two pointers
800
x27949
1433B
Yet Another Bookshelf
greedy
,
implementation
800
x27948
1843B
Long Long
greedy
,
math
,
two pointers
800
x27921
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x27912
1853A
Desorting
brute force
,
greedy
,
math
800
x27733
1550A
Find The Array
greedy
,
math
800
x27605
1633B
Minority
greedy
800
x27185
1511A
Review Site
greedy
800
x27130
1421A
XORwice
bitmasks
,
greedy
,
math
800
x27106
1792A
GamingForces
greedy
,
sortings
800
x27090
1855A
Dalton the Teacher
greedy
,
math
800
x27075
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x27009
1829C
Mr. Perfectly Fine
bitmasks
,
greedy
,
implementation
800
x26967
1702B
Polycarp Writes a String from Memory
greedy
800
x26859
1790B
Taisia and Dice
greedy
,
greedy
,
math
800
x26604
1721A
Image
greedy
,
implementation
800
x26561
1920A
Satisfying Constraints
brute force
,
greedy
,
math
800
x26360
1932A
Thorns and Coins
dp
,
greedy
,
implementation
800
x26285
1744A
Number Replacement
greedy
,
implementation
800
x26284
1391B
Fix You
brute force
,
greedy
,
implementation
800
x25981
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x25926
1478A
Nezzar and Colorful Balls
brute force
,
greedy
800
x25680
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