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Codeforces Round 940 (Div. 2) and CodeCraft-23
2 days
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combine-tags-by-or
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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
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number theory
probabilities
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shortest paths
sortings
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strings
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trees
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Custom test
Problems
#
Name
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x196695
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77425
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70111
1399A
Remove Smallest
greedy
,
sortings
800
x62322
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56327
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55079
1760A
Medium Number
implementation
,
sortings
800
x52960
1850A
To My Critics
implementation
,
sortings
800
x50289
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47335
1360B
Honest Coach
greedy
,
sortings
800
x45818
1676B
Equal Candies
greedy
,
math
,
sortings
800
x44742
1742B
Increasing
greedy
,
implementation
,
sortings
800
x43847
1850B
Ten Words of Wisdom
implementation
,
sortings
800
x39926
1669B
Triple
implementation
,
sortings
800
x39446
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x34810
1760C
Advantage
data structures
,
implementation
,
sortings
800
x34726
1843A
Sasha and Array Coloring
greedy
,
sortings
,
two pointers
800
x32787
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32768
1692B
All Distinct
greedy
,
sortings
800
x32579
1618A
Polycarp and Sums of Subsequences
math
,
sortings
800
x31444
1220A
Cards
implementation
,
sortings
,
strings
800
x28745
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28523
1629A
Download More RAM
brute force
,
greedy
,
sortings
800
x28475
1626A
Equidistant Letters
constructive algorithms
,
sortings
800
x28277
1851B
Parity Sort
greedy
,
sortings
,
two pointers
800
x27875
1557A
Ezzat and Two Subsequences
brute force
,
math
,
sortings
800
x27418
1792A
GamingForces
greedy
,
sortings
800
x27060
1783A
Make it Beautiful
constructive algorithms
,
math
,
sortings
800
x26983
1487A
Arena
implementation
,
sortings
800
x26119
1092B
Teams Forming
sortings
800
x25531
1705A
Mark the Photographer
greedy
,
sortings
800
x24770
1041A
Heist
greedy
,
implementation
,
sortings
800
x24407
1728A
Colored Balls: Revisited
brute force
,
greedy
,
implementation
,
sortings
800
x24310
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24023
1822B
Karina and Array
greedy
,
math
,
sortings
800
x23972
1526A
Mean Inequality
constructive algorithms
,
sortings
800
x23812
1497A
Meximization
brute force
,
data structures
,
greedy
,
sortings
800
x23807
1552A
Subsequence Permutation
sortings
,
strings
800
x23477
1206A
Choose Two Numbers
math
,
sortings
800
x23412
1903A
Halloumi Boxes
brute force
,
greedy
,
sortings
800
x23299
1946A
Median of an Array
greedy
,
implementation
,
sortings
800
x22684
1730A
Planets
data structures
,
greedy
,
sortings
800
x22463
1736A
Make A Equal to B
brute force
,
greedy
,
sortings
800
x22356
1637A
Sorting Parts
brute force
,
sortings
800
x22048
1847A
The Man who became a God
greedy
,
sortings
800
x21583
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x21526
1646B
Quality vs Quantity
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
800
x20818
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x20710
1734A
Select Three Sticks
brute force
,
greedy
,
sortings
800
x20674
1733A
Consecutive Sum
greedy
,
sortings
800
x20617
1836A
Destroyer
implementation
,
sortings
800
x19725
1895B
Points and Minimum Distance
greedy
,
math
,
sortings
800
x19548
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x19533
1798A
Showstopper
greedy
,
implementation
,
sortings
800
x19293
1656A
Good Pairs
math
,
sortings
800
x19213
1867A
green_gold_dog, array and permutation
constructive algorithms
,
sortings
800
x19117
1430B
Barrels
greedy
,
implementation
,
sortings
800
x19093
984A
Game
sortings
800
x18859
1445A
Array Rearrangment
greedy
,
sortings
800
x18793
1654A
Maximum Cake Tastiness
brute force
,
greedy
,
implementation
,
sortings
800
x18393
1891A
Sorting with Twos
constructive algorithms
,
sortings
800
x18264
1896A
Jagged Swaps
sortings
800
x18143
1688B
Patchouli's Magical Talisman
bitmasks
,
constructive algorithms
,
greedy
,
sortings
800
x17822
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x17467
1930A
Maximise The Score
greedy
,
sortings
800
x16857
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x16713
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x16433
1689A
Lex String
brute force
,
greedy
,
implementation
,
sortings
,
two pointers
800
x16348
1617A
Forbidden Subsequence
constructive algorithms
,
greedy
,
sortings
,
strings
800
x16070
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x15980
1670A
Prof. Slim
greedy
,
implementation
,
sortings
800
x15214
937A
Olympiad
implementation
,
sortings
800
x14777
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x13719
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13508
1738A
Glory Addicts
greedy
,
implementation
,
sortings
800
x13312
992A
Nastya and an Array
implementation
,
sortings
800
x12868
169A
Chores
sortings
800
x6533
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x5973
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x5562
648B
Собери стол
constructive algorithms
,
sortings
800
x1189
160A
Twins
greedy
,
sortings
900
x110155
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x93703
34B
Sale
greedy
,
sortings
900
x48244
149A
Business trip
greedy
,
implementation
,
sortings
900
x37502
1850D
Balanced Round
brute force
,
greedy
,
implementation
,
sortings
900
x31791
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x29479
768A
Oath of the Night's Watch
constructive algorithms
,
sortings
900
x26003
1697B
Promo
greedy
,
sortings
900
x25331
1833B
Restore the Weather
greedy
,
sortings
900
x25256
1420A
Cubes Sorting
math
,
sortings
900
x22796
1771A
Hossam and Combinatorics
combinatorics
,
math
,
sortings
900
x21947
1918B
Minimize Inversions
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
900
x21849
1272A
Three Friends
brute force
,
greedy
,
math
,
sortings
900
x19993
807A
Is it rated?
implementation
,
sortings
900
x19336
1665B
Array Cloning Technique
constructive algorithms
,
greedy
,
sortings
900
x18549
1501B
Napoleon Cake
dp
,
implementation
,
sortings
900
x18403
1216B
Shooting
greedy
,
implementation
,
sortings
900
x17993
1480B
The Great Hero
greedy
,
implementation
,
sortings
900
x16896
1427A
Avoiding Zero
math
,
sortings
900
x16804
16B
Burglar and Matches
greedy
,
implementation
,
sortings
900
x16691
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