Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 940 (Div. 2) and CodeCraft-23
46:24:15
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
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
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
231A
Team
brute force
,
greedy
800
x296906
50A
Domino piling
greedy
,
math
800
x227203
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x196736
58A
Chat room
greedy
,
strings
1000
x121521
160A
Twins
greedy
,
sortings
900
x110179
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x93729
469A
I Wanna Be the Guy
greedy
,
implementation
800
x90711
996A
Hit the Lottery
dp
,
greedy
800
x83594
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82045
337A
Puzzles
greedy
900
x75178
230A
Dragons
greedy
,
sortings
1000
x73869
1399A
Remove Smallest
greedy
,
sortings
800
x62335
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62129
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x59671
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56336
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55091
1367B
Even Array
greedy
,
math
800
x49953
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48456
34B
Sale
greedy
,
sortings
900
x48256
1551A
Polycarp and Coins
greedy
,
math
800
x48083
1360A
Minimal Square
greedy
,
math
800
x47788
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x47638
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47340
1472B
Fair Division
dp
,
greedy
,
math
800
x47201
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46216
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x46176
1360B
Honest Coach
greedy
,
sortings
800
x45821
514A
Chewbaсca and Number
greedy
,
implementation
1200
x45160
1676B
Equal Candies
greedy
,
math
,
sortings
800
x44747
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44235
1742B
Increasing
greedy
,
implementation
,
sortings
800
x43858
1873B
Good Kid
brute force
,
greedy
,
math
800
x43600
1374C
Move Brackets
greedy
,
strings
1000
x43076
1857A
Array Coloring
greedy
,
math
800
x42930
1399B
Gifts Fixing
greedy
800
x42262
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41336
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41177
1472A
Cards for Friends
greedy
,
math
800
x40692
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40512
1921A
Square
greedy
,
math
800
x39460
1807B
Grab the Candies
greedy
800
x39439
1927A
Make it White
greedy
,
strings
800
x39171
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38847
1348A
Phoenix and Balance
greedy
,
math
800
x38263
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38152
1342A
Road To Zero
greedy
,
math
1000
x38148
1878A
How Much Does Daytona Cost?
greedy
800
x38144
1358A
Park Lighting
greedy
,
math
800
x37975
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x37916
556A
Case of the Zeros and Ones
greedy
900
x37698
149A
Business trip
greedy
,
implementation
,
sortings
900
x37508
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37031
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36551
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x36190
1385B
Restore the Permutation by Merger
greedy
800
x36182
550A
Two Substrings
brute force
,
dp
,
greedy
,
implementation
,
strings
1500
x36087
1537A
Arithmetic Array
greedy
,
math
800
x35808
1538A
Stone Game
brute force
,
dp
,
greedy
800
x35598
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x35100
1660A
Vasya and Coins
greedy
,
math
800
x34892
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x34824
978B
File Name
greedy
,
strings
800
x34823
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x34809
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x34718
1858A
Buttons
games
,
greedy
,
math
800
x33778
320A
Magic Numbers
brute force
,
greedy
900
x33420
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x33133
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x32964
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x32791
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32771
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32623
1692B
All Distinct
greedy
,
sortings
800
x32585
1690A
Print a Pedestal (Codeforces logo?)
constructive algorithms
,
greedy
800
x32423
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x32262
1294C
Product of Three Numbers
greedy
,
math
,
number theory
1300
x32060
1850D
Balanced Round
brute force
,
greedy
,
implementation
,
sortings
900
x31812
1921B
Arranging Cats
greedy
,
implementation
800
x31713
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x31584
1675A
Food for Animals
greedy
,
math
800
x31339
1716A
2-3 Moves
greedy
,
math
800
x31223
1462C
Unique Number
brute force
,
greedy
,
math
900
x31064
1538B
Friends and Candies
greedy
,
math
800
x30928
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x30856
1490A
Dense Array
greedy
,
math
800
x30546
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30487
567A
Lineland Mail
greedy
,
implementation
900
x30387
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x29889
1811A
Insert Digit
greedy
,
math
,
strings
800
x29888
1714C
Minimum Varied Number
greedy
800
x29832
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29665
1931B
Make Equal
greedy
800
x29596
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x29482
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29335
1328C
Ternary XOR
greedy
,
implementation
1200
x29275
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x29183
1729B
Decode String
greedy
,
strings
800
x29160
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29014
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x28954
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x28941
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x28904
←
1
2
3
...
26
27
→
User lists
Name