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Contest is running
Codeforces Round 946 (Div. 3)
01:58:48
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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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Problems
#
Name
231A
Team
brute force
,
greedy
800
x301095
50A
Domino piling
greedy
,
math
800
x229918
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x199371
58A
Chat room
greedy
,
strings
1000
x122751
160A
Twins
greedy
,
sortings
900
x111340
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x94901
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91794
996A
Hit the Lottery
dp
,
greedy
800
x84728
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x82714
337A
Puzzles
greedy
900
x75833
230A
Dragons
greedy
,
sortings
1000
x74655
1399A
Remove Smallest
greedy
,
sortings
800
x63005
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62750
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60738
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56850
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55770
1367B
Even Array
greedy
,
math
800
x50512
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x49060
34B
Sale
greedy
,
sortings
900
x48967
1551A
Polycarp and Coins
greedy
,
math
800
x48601
1360A
Minimal Square
greedy
,
math
800
x48189
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x48141
1472B
Fair Division
dp
,
greedy
,
math
800
x47706
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47676
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46754
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x46748
1360B
Honest Coach
greedy
,
sortings
800
x46234
514A
Chewbaсca and Number
greedy
,
implementation
1200
x46114
1676B
Equal Candies
greedy
,
math
,
sortings
800
x45401
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44751
1873B
Good Kid
brute force
,
greedy
,
math
800
x44678
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44645
1857A
Array Coloring
greedy
,
math
800
x43838
1374C
Move Brackets
greedy
,
strings
1000
x43600
1399B
Gifts Fixing
greedy
800
x42453
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41960
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41694
1472A
Cards for Friends
greedy
,
math
800
x40973
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40754
1921A
Square
greedy
,
math
800
x40156
1927A
Make it White
greedy
,
strings
800
x39935
1807B
Grab the Candies
greedy
800
x39935
1878A
How Much Does Daytona Cost?
greedy
800
x39166
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x39049
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38547
1342A
Road To Zero
greedy
,
math
1000
x38486
1348A
Phoenix and Balance
greedy
,
math
800
x38441
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x38322
1358A
Park Lighting
greedy
,
math
800
x38209
556A
Case of the Zeros and Ones
greedy
900
x38038
149A
Business trip
greedy
,
implementation
,
sortings
900
x37913
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37446
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36955
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x36462
550A
Two Substrings
brute force
,
dp
,
greedy
,
implementation
,
strings
1500
x36409
1385B
Restore the Permutation by Merger
greedy
800
x36340
1537A
Arithmetic Array
greedy
,
math
800
x36166
1538A
Stone Game
brute force
,
dp
,
greedy
800
x35825
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35659
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x35375
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x35156
1660A
Vasya and Coins
greedy
,
math
800
x35127
978B
File Name
greedy
,
strings
800
x35101
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x34956
1858A
Buttons
games
,
greedy
,
math
800
x34578
320A
Magic Numbers
brute force
,
greedy
900
x33815
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x33368
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x33141
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x33081
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x33022
1692B
All Distinct
greedy
,
sortings
800
x32907
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32903
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x32835
1850D
Balanced Round
brute force
,
greedy
,
implementation
,
sortings
900
x32649
1690A
Print a Pedestal (Codeforces logo?)
constructive algorithms
,
greedy
800
x32627
1294C
Product of Three Numbers
greedy
,
math
,
number theory
1300
x32468
1921B
Arranging Cats
greedy
,
implementation
800
x32101
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x31757
1675A
Food for Animals
greedy
,
math
800
x31627
1716A
2-3 Moves
greedy
,
math
800
x31512
1462C
Unique Number
brute force
,
greedy
,
math
900
x31358
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x31243
1538B
Friends and Candies
greedy
,
math
800
x31073
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30943
567A
Lineland Mail
greedy
,
implementation
900
x30692
1490A
Dense Array
greedy
,
math
800
x30677
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x30588
1931B
Make Equal
greedy
800
x30180
1811A
Insert Digit
greedy
,
math
,
strings
800
x30113
1714C
Minimum Varied Number
greedy
800
x30061
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x29944
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29898
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x29671
1328C
Ternary XOR
greedy
,
implementation
1200
x29473
1729B
Decode String
greedy
,
strings
800
x29450
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x29408
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29408
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29278
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x29079
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x29058
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