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Codeforces Round 940 (Div. 2) and CodeCraft-23
43:08:05
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math
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
schedules
shortest paths
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trees
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Custom test
Problems
#
Name
4A
Watermelon
brute force
,
math
800
x477988
50A
Domino piling
greedy
,
math
800
x227217
617A
Elephant
math
800
x168747
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x166274
486A
Calculating Function
implementation
,
math
800
x108590
200B
Drinks
implementation
,
math
800
x107015
1328A
Divisibility Problem
math
800
x92586
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x86644
1335A
Candies and Two Sisters
math
800
x78142
1352A
Sum of Round Numbers
implementation
,
math
800
x71222
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70345
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70129
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x66724
581A
Vasya the Hipster
implementation
,
math
800
x66722
1154A
Restoring Three Numbers
math
800
x65906
151A
Soft Drinking
implementation
,
math
800
x65198
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62132
758A
Holiday Of Equality
implementation
,
math
800
x56879
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x56713
1343B
Balanced Array
constructive algorithms
,
math
800
x53397
9A
Die Roll
math
,
probabilities
800
x52131
1374A
Required Remainder
math
800
x50338
1367B
Even Array
greedy
,
math
800
x49959
1624A
Plus One on the Subset
math
800
x49479
1433A
Boring Apartments
implementation
,
math
800
x49010
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48459
1551A
Polycarp and Coins
greedy
,
math
800
x48090
1360A
Minimal Square
greedy
,
math
800
x47788
1472B
Fair Division
dp
,
greedy
,
math
800
x47202
1283A
Minutes Before the New Year
math
800
x46239
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46218
1426A
Floor Number
implementation
,
math
800
x45286
1676B
Equal Candies
greedy
,
math
,
sortings
800
x44749
1371A
Magical Sticks
math
800
x44118
1294A
Collecting Coins
math
800
x44064
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x43824
1873B
Good Kid
brute force
,
greedy
,
math
800
x43605
1857A
Array Coloring
greedy
,
math
800
x42942
1520B
Ordinary Numbers
brute force
,
math
,
number theory
800
x42617
1542A
Odd Set
math
800
x42029
1472A
Cards for Friends
greedy
,
math
800
x40694
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40513
233A
Perfect Permutation
implementation
,
math
800
x40229
1921A
Square
greedy
,
math
800
x39468
1296A
Array with Odd Sum
math
800
x39270
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38851
1729A
Two Elevators
math
800
x38620
1348A
Phoenix and Balance
greedy
,
math
800
x38264
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38154
1941A
Rudolf and the Ticket
brute force
,
math
800
x38097
1358A
Park Lighting
greedy
,
math
800
x37978
1579A
Casimir's String Solitaire
math
,
strings
800
x37670
1385A
Three Pairwise Maximums
math
800
x37446
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37033
1899A
Game with Integers
games
,
math
,
number theory
800
x36991
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36552
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x35852
1537A
Arithmetic Array
greedy
,
math
800
x35808
1369A
FashionabLee
geometry
,
math
800
x35472
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35465
1593A
Elections
math
800
x35369
1660A
Vasya and Coins
greedy
,
math
800
x34893
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x34827
1873C
Target Practice
implementation
,
math
800
x34647
1560B
Who's Opposite?
math
800
x34598
1858A
Buttons
games
,
greedy
,
math
800
x33784
1950C
Clock Conversion
implementation
,
math
800
x32952
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32771
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32632
1955A
Yogurt Sale
math
800
x31972
822A
I'm bored with life
implementation
,
math
,
number theory
800
x31560
1919A
Wallet Exchange
games
,
math
800
x31497
1618A
Polycarp and Sums of Subsequences
math
,
sortings
800
x31451
1675A
Food for Animals
greedy
,
math
800
x31341
1716A
2-3 Moves
greedy
,
math
800
x31226
1846A
Rudolph and Cut the Rope
implementation
,
math
800
x31203
1549A
Gregor and Cryptography
math
,
number theory
800
x31197
1538B
Friends and Candies
greedy
,
math
800
x30929
1843C
Sum in Binary Tree
bitmasks
,
combinatorics
,
math
,
trees
800
x30881
1490A
Dense Array
greedy
,
math
800
x30546
1611A
Make Even
constructive algorithms
,
math
800
x30485
1506A
Strange Table
math
800
x30056
1553A
Digits Sum
math
,
number theory
800
x30032
1619B
Squares and Cubes
implementation
,
math
800
x29965
1811A
Insert Digit
greedy
,
math
,
strings
800
x29891
1547A
Shortest Path with Obstacle
implementation
,
math
800
x29813
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29677
1878B
Aleksa and Stack
constructive algorithms
,
math
800
x29644
1519B
The Cake Is a Lie
dp
,
math
800
x29644
1622A
Construct a Rectangle
geometry
,
math
800
x29400
1933B
Turtle Math: Fast Three Task
implementation
,
math
,
number theory
800
x29392
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29335
1077A
Frog Jumping
math
800
x28972
1859A
United We Stand
constructive algorithms
,
math
,
number theory
800
x28939
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x28904
1837A
Grasshopper on a Line
constructive algorithms
,
math
800
x28821
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28626
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28534
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x28497
1851A
Escalator Conversations
brute force
,
constructive algorithms
,
math
800
x28481
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