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2-sat
binary search
bitmasks
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combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
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implementation
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math
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Problems
#
Name
1855A
Dalton the Teacher
greedy
,
math
800
x27181
1196A
Three Piles of Candies
brute force
,
constructive algorithms
,
math
800
x27265
1421A
XORwice
bitmasks
,
greedy
,
math
800
x27272
1234A
Equalize Prices Again
math
800
x27280
1783A
Make it Beautiful
constructive algorithms
,
math
,
sortings
800
x27286
1285A
Mezo Playing Zoma
math
800
x27302
1557A
Ezzat and Two Subsequences
brute force
,
math
,
sortings
800
x27468
1660B
Vlad and Candies
math
800
x27527
1788A
One and Two
brute force
,
implementation
,
math
800
x27600
1550A
Find The Array
greedy
,
math
800
x27661
1853A
Desorting
brute force
,
greedy
,
math
800
x28006
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x28015
1843B
Long Long
greedy
,
math
,
two pointers
800
x28048
1519A
Red and Blue Beans
math
800
x28301
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x28450
734B
Anton and Digits
brute force
,
greedy
,
implementation
,
math
800
x28535
1914B
Preparing for the Contest
constructive algorithms
,
math
800
x28556
1851A
Escalator Conversations
brute force
,
constructive algorithms
,
math
800
x28632
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x28745
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28840
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x28876
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x29033
1077A
Frog Jumping
math
800
x29067
1837A
Grasshopper on a Line
constructive algorithms
,
math
800
x29145
1859A
United We Stand
constructive algorithms
,
math
,
number theory
800
x29362
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29382
1622A
Construct a Rectangle
geometry
,
math
800
x29472
1519B
The Cake Is a Lie
dp
,
math
800
x29772
1878B
Aleksa and Stack
constructive algorithms
,
math
800
x29844
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29852
1547A
Shortest Path with Obstacle
implementation
,
math
800
x29898
1933B
Turtle Math: Fast Three Task
implementation
,
math
,
number theory
800
x29920
1811A
Insert Digit
greedy
,
math
,
strings
800
x30042
1619B
Squares and Cubes
implementation
,
math
800
x30069
1506A
Strange Table
math
800
x30118
1553A
Digits Sum
math
,
number theory
800
x30157
1490A
Dense Array
greedy
,
math
800
x30649
1611A
Make Even
constructive algorithms
,
math
800
x30661
1538B
Friends and Candies
greedy
,
math
800
x31033
1843C
Sum in Binary Tree
bitmasks
,
combinatorics
,
math
,
trees
800
x31105
1549A
Gregor and Cryptography
math
,
number theory
800
x31353
1846A
Rudolph and Cut the Rope
implementation
,
math
800
x31394
1716A
2-3 Moves
greedy
,
math
800
x31435
1675A
Food for Animals
greedy
,
math
800
x31548
1618A
Polycarp and Sums of Subsequences
math
,
sortings
800
x31568
822A
I'm bored with life
implementation
,
math
,
number theory
800
x31707
1919A
Wallet Exchange
games
,
math
800
x31742
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32868
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32936
1858A
Buttons
games
,
greedy
,
math
800
x34333
1560B
Who's Opposite?
math
800
x34715
1950C
Clock Conversion
implementation
,
math
800
x35045
1660A
Vasya and Coins
greedy
,
math
800
x35074
1873C
Target Practice
implementation
,
math
800
x35382
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35432
1593A
Elections
math
800
x35545
1369A
FashionabLee
geometry
,
math
800
x35597
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35646
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x36070
1537A
Arithmetic Array
greedy
,
math
800
x36078
1955A
Yogurt Sale
math
800
x36313
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36855
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37298
1385A
Three Pairwise Maximums
math
800
x37590
1579A
Casimir's String Solitaire
math
,
strings
800
x37825
1899A
Game with Integers
games
,
math
,
number theory
800
x37974
1358A
Park Lighting
greedy
,
math
800
x38138
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38403
1348A
Phoenix and Balance
greedy
,
math
800
x38405
1941A
Rudolf and the Ticket
brute force
,
math
800
x38888
1729A
Two Elevators
math
800
x38960
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38987
1296A
Array with Odd Sum
math
800
x39529
1921A
Square
greedy
,
math
800
x39933
233A
Perfect Permutation
implementation
,
math
800
x40462
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40706
1472A
Cards for Friends
greedy
,
math
800
x40864
1542A
Odd Set
math
800
x42337
1520B
Ordinary Numbers
brute force
,
math
,
number theory
800
x42865
1857A
Array Coloring
greedy
,
math
800
x43608
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x44185
1294A
Collecting Coins
math
800
x44315
1371A
Magical Sticks
math
800
x44346
1873B
Good Kid
brute force
,
greedy
,
math
800
x44440
1676B
Equal Candies
greedy
,
math
,
sortings
800
x45244
1426A
Floor Number
implementation
,
math
800
x45573
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46560
1283A
Minutes Before the New Year
math
800
x46581
1472B
Fair Division
dp
,
greedy
,
math
800
x47552
1360A
Minimal Square
greedy
,
math
800
x48058
1551A
Polycarp and Coins
greedy
,
math
800
x48472
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48810
1433A
Boring Apartments
implementation
,
math
800
x49354
1624A
Plus One on the Subset
math
800
x49826
1367B
Even Array
greedy
,
math
800
x50349
1374A
Required Remainder
math
800
x50655
9A
Die Roll
math
,
probabilities
800
x52618
1343B
Balanced Array
constructive algorithms
,
math
800
x53730
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x57052
758A
Holiday Of Equality
implementation
,
math
800
x57376
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