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Codeforces Round 941 (Div. 1)
2 days
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Before contest
Codeforces Round 941 (Div. 2)
2 days
Register now »
*has extra registration
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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
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flows
games
geometry
graph matchings
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greedy
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implementation
interactive
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number theory
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Custom test
Problems
#
Name
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197289
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77579
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70342
1399A
Remove Smallest
greedy
,
sortings
800
x62460
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56447
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55233
1760A
Medium Number
implementation
,
sortings
800
x53163
1850A
To My Critics
implementation
,
sortings
800
x50583
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47399
1360B
Honest Coach
greedy
,
sortings
800
x45902
1676B
Equal Candies
greedy
,
math
,
sortings
800
x44856
1742B
Increasing
greedy
,
implementation
,
sortings
800
x44059
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x40082
1669B
Triple
implementation
,
sortings
800
x39580
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x34996
1760C
Advantage
data structures
,
implementation
,
sortings
800
x34801
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x32836
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32798
1692B
All Distinct
greedy
,
sortings
800
x32635
1618A
Polycarp and Sums of Subsequences
math
,
sortings
800
x31477
1220A
Cards
implementation
,
sortings
,
strings
800
x28773
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28649
1629A
Download More RAM
brute force
,
greedy
,
sortings
800
x28517
1626A
Equidistant Letters
constructive algorithms
,
sortings
800
x28295
1851B
Parity Sort
greedy
,
sortings
,
two pointers
800
x27939
1557A
Ezzat and Two Subsequences
brute force
,
math
,
sortings
800
x27430
1792A
GamingForces
greedy
,
sortings
800
x27086
1783A
Make it Beautiful
constructive algorithms
,
math
,
sortings
800
x27072
1487A
Arena
implementation
,
sortings
800
x26131
1092B
Teams Forming
sortings
800
x25584
1705A
Mark the Photographer
greedy
,
sortings
800
x24787
1041A
Heist
greedy
,
implementation
,
sortings
800
x24435
1728A
Colored Balls: Revisited
brute force
,
greedy
,
implementation
,
sortings
800
x24319
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24040
1822B
Karina and Array
greedy
,
math
,
sortings
800
x24016
1526A
Mean Inequality
constructive algorithms
,
sortings
800
x23830
1497A
Meximization
brute force
,
data structures
,
greedy
,
sortings
800
x23830
1903A
Halloumi Boxes
brute force
,
greedy
,
sortings
800
x23551
1552A
Subsequence Permutation
sortings
,
strings
800
x23489
1206A
Choose Two Numbers
math
,
sortings
800
x23419
1946A
Median of an Array
greedy
,
implementation
,
sortings
800
x22990
1730A
Planets
data structures
,
greedy
,
sortings
800
x22476
1736A
Make A Equal to B
brute force
,
greedy
,
sortings
800
x22395
1637A
Sorting Parts
brute force
,
sortings
800
x22055
1847A
The Man who became a God
greedy
,
sortings
800
x21619
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x21552
1646B
Quality vs Quantity
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
800
x20838
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x20725
1734A
Select Three Sticks
brute force
,
greedy
,
sortings
800
x20695
1733A
Consecutive Sum
greedy
,
sortings
800
x20638
1836A
Destroyer
implementation
,
sortings
800
x19744
1895B
Points and Minimum Distance
greedy
,
math
,
sortings
800
x19575
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x19548
1798A
Showstopper
greedy
,
implementation
,
sortings
800
x19309
1656A
Good Pairs
math
,
sortings
800
x19222
1867A
green_gold_dog, array and permutation
constructive algorithms
,
sortings
800
x19134
1430B
Barrels
greedy
,
implementation
,
sortings
800
x19102
984A
Game
sortings
800
x18870
1445A
Array Rearrangment
greedy
,
sortings
800
x18796
1654A
Maximum Cake Tastiness
brute force
,
greedy
,
implementation
,
sortings
800
x18399
1891A
Sorting with Twos
constructive algorithms
,
sortings
800
x18298
1896A
Jagged Swaps
sortings
800
x18286
1688B
Patchouli's Magical Talisman
bitmasks
,
constructive algorithms
,
greedy
,
sortings
800
x17834
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x17470
1930A
Maximise The Score
greedy
,
sortings
800
x16951
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x16767
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x16437
1689A
Lex String
brute force
,
greedy
,
implementation
,
sortings
,
two pointers
800
x16361
1617A
Forbidden Subsequence
constructive algorithms
,
greedy
,
sortings
,
strings
800
x16079
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x15988
1670A
Prof. Slim
greedy
,
implementation
,
sortings
800
x15225
937A
Olympiad
implementation
,
sortings
800
x14811
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x13756
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13522
1738A
Glory Addicts
greedy
,
implementation
,
sortings
800
x13319
992A
Nastya and an Array
implementation
,
sortings
800
x12884
169A
Chores
sortings
800
x6543
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x5976
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x5565
648B
Собери стол
constructive algorithms
,
sortings
800
x1197
160A
Twins
greedy
,
sortings
900
x110401
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x93957
34B
Sale
greedy
,
sortings
900
x48371
149A
Business trip
greedy
,
implementation
,
sortings
900
x37576
1850D
Balanced Round
brute force
,
greedy
,
implementation
,
sortings
900
x32004
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x29511
768A
Oath of the Night's Watch
constructive algorithms
,
sortings
900
x26049
1697B
Promo
greedy
,
sortings
900
x25377
1833B
Restore the Weather
greedy
,
sortings
900
x25289
1420A
Cubes Sorting
math
,
sortings
900
x22817
1771A
Hossam and Combinatorics
combinatorics
,
math
,
sortings
900
x21976
1918B
Minimize Inversions
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
900
x21923
1272A
Three Friends
brute force
,
greedy
,
math
,
sortings
900
x20005
807A
Is it rated?
implementation
,
sortings
900
x19375
1665B
Array Cloning Technique
constructive algorithms
,
greedy
,
sortings
900
x18609
1501B
Napoleon Cake
dp
,
implementation
,
sortings
900
x18422
1216B
Shooting
greedy
,
implementation
,
sortings
900
x18019
1480B
The Great Hero
greedy
,
implementation
,
sortings
900
x16909
1427A
Avoiding Zero
math
,
sortings
900
x16817
16B
Burglar and Matches
greedy
,
implementation
,
sortings
900
x16741
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