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Before contest
Codeforces Round 945 (Div. 2)
4 days
→ 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
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Problems
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Status
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Custom test
Problems
#
Name
231A
Team
brute force
,
greedy
800
x300135
50A
Domino piling
greedy
,
math
800
x229313
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198778
469A
I Wanna Be the Guy
greedy
,
implementation
800
x91567
996A
Hit the Lottery
dp
,
greedy
800
x84461
1399A
Remove Smallest
greedy
,
sortings
800
x62860
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62603
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60557
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56729
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55645
1367B
Even Array
greedy
,
math
800
x50376
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48872
1551A
Polycarp and Coins
greedy
,
math
800
x48488
1360A
Minimal Square
greedy
,
math
800
x48080
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47598
1472B
Fair Division
dp
,
greedy
,
math
800
x47565
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46622
1360B
Honest Coach
greedy
,
sortings
800
x46132
1676B
Equal Candies
greedy
,
math
,
sortings
800
x45269
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44572
1873B
Good Kid
brute force
,
greedy
,
math
800
x44486
1857A
Array Coloring
greedy
,
math
800
x43655
1399B
Gifts Fixing
greedy
800
x42404
1760B
Atilla's Favorite Problem
greedy
,
implementation
,
strings
800
x41834
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x41581
1472A
Cards for Friends
greedy
,
math
800
x40875
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40715
1921A
Square
greedy
,
math
800
x39984
1807B
Grab the Candies
greedy
800
x39846
1927A
Make it White
greedy
,
strings
800
x39751
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x39001
1878A
How Much Does Daytona Cost?
greedy
800
x38913
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38423
1348A
Phoenix and Balance
greedy
,
math
800
x38413
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x38239
1358A
Park Lighting
greedy
,
math
800
x38151
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37319
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36872
1385B
Restore the Permutation by Merger
greedy
800
x36311
1537A
Arithmetic Array
greedy
,
math
800
x36095
1538A
Stone Game
brute force
,
dp
,
greedy
800
x35768
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35478
1660A
Vasya and Coins
greedy
,
math
800
x35084
978B
File Name
greedy
,
strings
800
x35037
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x34911
1858A
Buttons
games
,
greedy
,
math
800
x34392
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x33005
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32952
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32875
1692B
All Distinct
greedy
,
sortings
800
x32846
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x32753
1690A
Print a Pedestal (Codeforces logo?)
constructive algorithms
,
greedy
800
x32583
1921B
Arranging Cats
greedy
,
implementation
800
x32008
1675A
Food for Animals
greedy
,
math
800
x31561
1716A
2-3 Moves
greedy
,
math
800
x31444
1538B
Friends and Candies
greedy
,
math
800
x31039
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30798
1490A
Dense Array
greedy
,
math
800
x30654
1811A
Insert Digit
greedy
,
math
,
strings
800
x30054
1931B
Make Equal
greedy
800
x30034
1714C
Minimum Varied Number
greedy
800
x30014
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29862
1729B
Decode String
greedy
,
strings
800
x29412
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29386
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x29363
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x29226
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x29039
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x28992
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28911
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28853
1919B
Plus-Minus Split
greedy
800
x28813
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x28763
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28650
1631A
Min Max Swap
greedy
800
x28642
1554A
Cherry
greedy
800
x28601
1629A
Download More RAM
brute force
,
greedy
,
sortings
800
x28555
734B
Anton and Digits
brute force
,
greedy
,
implementation
,
math
800
x28549
1397A
Juggling Letters
greedy
,
strings
800
x28121
1851B
Parity Sort
greedy
,
sortings
,
two pointers
800
x28097
1843B
Long Long
greedy
,
math
,
two pointers
800
x28059
1853A
Desorting
brute force
,
greedy
,
math
800
x28047
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x28021
1433B
Yet Another Bookshelf
greedy
,
implementation
800
x27993
1550A
Find The Array
greedy
,
math
800
x27664
1421A
XORwice
bitmasks
,
greedy
,
math
800
x27283
1633B
Minority
greedy
800
x27237
1855A
Dalton the Teacher
greedy
,
math
800
x27192
1511A
Review Site
greedy
800
x27169
1829C
Mr. Perfectly Fine
bitmasks
,
greedy
,
implementation
800
x27163
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x27162
1792A
GamingForces
greedy
,
sortings
800
x27137
1702B
Polycarp Writes a String from Memory
greedy
800
x26950
1932A
Thorns and Coins
dp
,
greedy
,
implementation
800
x26756
1790B
Taisia and Dice
greedy
,
greedy
,
math
800
x26671
1721A
Image
greedy
,
implementation
800
x26615
1920A
Satisfying Constraints
brute force
,
greedy
,
math
800
x26496
1744A
Number Replacement
greedy
,
implementation
800
x26402
1391B
Fix You
brute force
,
greedy
,
implementation
800
x26069
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x25978
1478A
Nezzar and Colorful Balls
brute force
,
greedy
800
x25719
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