Expansion coefficient of the array

implementation, math

Leha and Function

combinatorics, greedy, math, number theory, sortings

Rectangles

combinatorics, math

Shashlik Cooking

dp, greedy, math

Position in Fraction

math, number theory

Lucky Permutation Triple

constructive algorithms, implementation, math

Koala and Lights

implementation, math, number theory

Dividing the numbers

constructive algorithms, graphs, math

Divisiblity of Differences

implementation, math, number theory

Neko Performs Cat Furrier Transform

bitmasks, constructive algorithms, dfs and similar, math

World Cup

binary search, math

Maximum splitting

dp, greedy, math, number theory

Alarm Clocks Everywhere

math, number theory

Bessie's Birthday Cake (Easy Version)

geometry, greedy, math

Ela's Fitness and the Luxury Number

binary search, implementation, math

Sonya and Exhibition

constructive algorithms, greedy, implementation, math

Intense Heat

brute force, implementation, math

Substring Removal

combinatorics, math, strings

Colorful Table

binary search, data structures, dp, implementation, math, two pointers

Swords

math

Rubik's Cube Coloring (easy version)

combinatorics, math

Fox Dividing Cheese

math, number theory

Packets

constructive algorithms, greedy, math

Increase and Decrease

greedy, math

Charmed by the Game

brute force, math

Archer

math, probabilities

Blocks

greedy, math

Tiles

combinatorics, greedy, math

Multiplication Table

math, number theory

Strongly Composite

greedy, math, number theory

Nice Garland

brute force, greedy, math

Reorder the Array

combinatorics, data structures, math, sortings, two pointers

Yarik and Musical Notes

hashing, math, number theory

Meme Problem

binary search, math

Insert and Equalize

brute force, constructive algorithms, greedy, math, number theory

Beautiful Numbers

data structures, implementation, math, two pointers

Permutation Operations

constructive algorithms, greedy, implementation, math

Prime Matrix

binary search, brute force, math, number theory

Scoring Subsequences

binary search, greedy, math, two pointers

Little Alawn's Puzzle

combinatorics, dp, dsu, graphs, math

Divisor Chain

bitmasks, constructive algorithms, math, number theory

Twist the Permutation

brute force, constructive algorithms, implementation, math

Dreaming of Freedom

greedy, math, number theory

The Forbidden Permutation

greedy, math

Cow and Friend

geometry, greedy, math

Array Elimination

bitmasks, greedy, math, number theory

Ian and Array Sorting

greedy, math

Tear It Apart

brute force, implementation, math, strings

Money Trees

binary search, greedy, math, two pointers

Duff in Love

math

Move and Turn

dp, math

Divide and Equalize

math, number theory

Nice Matrix

greedy, implementation, math

Prefix Permutation Sums

implementation, math

Make it Increasing

brute force, greedy, math

Inversion Graph

data structures, dsu, graphs, math

Paprika and Permutation

binary search, greedy, math, sortings

Creating a Character

binary search, math

Particles

dp, greedy, implementation, math

Obtain Two Zeroes

binary search, math

And It's Non-Zero

bitmasks, greedy, math

Rudolf and Snowflakes (simple version)

brute force, implementation, math

Permutation Partitions

combinatorics, greedy, math

Inhabitant of the Deep Sea

greedy, implementation, math

Saving the City

dp, greedy, math, sortings

Divisible Pairs

combinatorics, math, number theory

Chat Ban

binary search, math

Simple Game

constructive algorithms, games, greedy, implementation, math

Ice Cream Balls

binary search, combinatorics, constructive algorithms, math

Maximal AND

bitmasks, greedy, math

Forever Winter

dfs and similar, graphs, math

Di-visible Confusion

constructive algorithms, math, number theory

Books Exchange (hard version)

dfs and similar, dsu, math

Bear and Poker

implementation, math, number theory

Blue-Red Permutation

greedy, math, sortings

Matching Numbers

constructive algorithms, greedy, math

Closest Cities

greedy, implementation, math

Big Vova

brute force, greedy, math, number theory

We Were Both Children

brute force, implementation, math, number theory

Strong Vertices

math, sortings, trees

Make a Power of Two

greedy, math, strings

Pluses and Minuses

math

Two Round Dances

combinatorics, math

Romantic Glasses

data structures, greedy, math

Array and Operations

dp, greedy, math

A and B and Team Training

greedy, implementation, math, number theory

Inflation

binary search, brute force, greedy, math

Shuffle

math, two pointers

Common Divisors

implementation, math

Number into Sequence

constructive algorithms, math, number theory

A Cookie for You

greedy, implementation, math

Nastia and a Good Array

constructive algorithms, math, number theory

3SUM

brute force, math

Anton and currency you all know

greedy, math, strings

Social Distance

constructive algorithms, greedy, math

Mere Array

constructive algorithms, math, number theory, sortings

Jzzhu and Sequences

implementation, math

Omkar and Last Class of Math

greedy, math, number theory

Number of Pairs

binary search, data structures, math, two pointers

K-th Beautiful String

binary search, brute force, combinatorics, implementation, math