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Before contest
Codeforces Round 941 (Div. 1)
24:03:30
Register now »
*has extra registration
Before contest
Codeforces Round 941 (Div. 2)
24:03:30
Register now »
*has extra registration
→ Filter Problems
Difficulty:
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greedy
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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Custom test
Problems
#
Name
231A
Team
brute force
,
greedy
800
x297908
50A
Domino piling
greedy
,
math
800
x227824
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197373
58A
Chat room
greedy
,
strings
1000
x121781
160A
Twins
greedy
,
sortings
900
x110445
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x94006
469A
I Wanna Be the Guy
greedy
,
implementation
800
x90970
996A
Hit the Lottery
dp
,
greedy
800
x83856
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82210
337A
Puzzles
greedy
900
x75318
230A
Dragons
greedy
,
sortings
1000
x74038
1399A
Remove Smallest
greedy
,
sortings
800
x62488
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62275
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x59944
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56477
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55266
1367B
Even Array
greedy
,
math
800
x50083
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48561
34B
Sale
greedy
,
sortings
900
x48404
1551A
Polycarp and Coins
greedy
,
math
800
x48205
1360A
Minimal Square
greedy
,
math
800
x47880
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x47740
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47418
1472B
Fair Division
dp
,
greedy
,
math
800
x47306
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x46332
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46297
1360B
Honest Coach
greedy
,
sortings
800
x45919
514A
Chewbaсca and Number
greedy
,
implementation
1200
x45383
1676B
Equal Candies
greedy
,
math
,
sortings
800
x44889
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44296
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44096
1873B
Good Kid
brute force
,
greedy
,
math
800
x43820
1374C
Move Brackets
greedy
,
strings
1000
x43212
1857A
Array Coloring
greedy
,
math
800
x43120
1399B
Gifts Fixing
greedy
800
x42291
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41458
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41292
1472A
Cards for Friends
greedy
,
math
800
x40753
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40604
1921A
Square
greedy
,
math
800
x39631
1807B
Grab the Candies
greedy
800
x39573
1927A
Make it White
greedy
,
strings
800
x39342
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38892
1878A
How Much Does Daytona Cost?
greedy
800
x38362
1348A
Phoenix and Balance
greedy
,
math
800
x38305
1342A
Road To Zero
greedy
,
math
1000
x38232
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38225
1358A
Park Lighting
greedy
,
math
800
x38025
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x38001
556A
Case of the Zeros and Ones
greedy
900
x37808
149A
Business trip
greedy
,
implementation
,
sortings
900
x37591
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37118
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36669
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x36236
1385B
Restore the Permutation by Merger
greedy
800
x36227
1537A
Arithmetic Array
greedy
,
math
800
x35875
1538A
Stone Game
brute force
,
dp
,
greedy
800
x35660
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x35175
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35038
1660A
Vasya and Coins
greedy
,
math
800
x34945
978B
File Name
greedy
,
strings
800
x34906
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x34893
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x34764
1858A
Buttons
games
,
greedy
,
math
800
x33945
320A
Magic Numbers
brute force
,
greedy
900
x33485
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x33182
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x33002
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x32856
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32804
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32726
1692B
All Distinct
greedy
,
sortings
800
x32647
1690A
Print a Pedestal (Codeforces logo?)
constructive algorithms
,
greedy
800
x32458
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x32375
1294C
Product of Three Numbers
greedy
,
math
,
number theory
1300
x32160
1850D
Balanced Round
brute force
,
greedy
,
implementation
,
sortings
900
x32024
1921B
Arranging Cats
greedy
,
implementation
800
x31807
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x31631
1675A
Food for Animals
greedy
,
math
800
x31407
1716A
2-3 Moves
greedy
,
math
800
x31303
1462C
Unique Number
brute force
,
greedy
,
math
900
x31139
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x30992
1538B
Friends and Candies
greedy
,
math
800
x30969
1490A
Dense Array
greedy
,
math
800
x30575
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30561
567A
Lineland Mail
greedy
,
implementation
900
x30482
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x30069
1811A
Insert Digit
greedy
,
math
,
strings
800
x29941
1714C
Minimum Varied Number
greedy
800
x29873
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29791
1931B
Make Equal
greedy
800
x29752
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x29519
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29348
1328C
Ternary XOR
greedy
,
implementation
1200
x29310
1729B
Decode String
greedy
,
strings
800
x29298
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x29237
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x29191
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29069
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x28958
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x28936
1366A
Shovels and Swords
binary search
,
greedy
,
math
1100
x28883
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