Avoid Local Maximums

greedy

Min Or Sum

bitmasks, greedy

Reverse and Concatenate

greedy, strings

Spanning Tree Queries

binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees

Make Them Equal

dp, greedy

Minority

greedy

New Year Concert

binary search, data structures, greedy, math, number theory, two pointers

Fun with Even Subarrays

dp, greedy

Min Max Swap

greedy

Flipping Range

constructive algorithms, dp, greedy, number theory

Paint the Middle

dp, greedy, sortings, two pointers

Range and Partition

binary search, constructive algorithms, data structures, greedy, two pointers

GCD Arrays

greedy, math, number theory

Download More RAM

brute force, greedy, sortings

Grid Xor

constructive algorithms, greedy, implementation, interactive, math

Peculiar Movie Preferences

greedy, strings

Meximum Array

binary search, constructive algorithms, greedy, implementation, math, two pointers

Not Splitting

geometry, graphs, greedy, implementation, shortest paths

Not Sitting

games, greedy, sortings

Black and White Tree

dfs and similar, greedy, trees

Martial Arts Tournament

binary search, brute force, greedy, math

Monsters And Spells

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

Minor Reduction

greedy, strings

Elementary Particles

brute force, greedy, sortings

Ancient Civilization

bitmasks, greedy, math

MinOr Tree

bitmasks, dfs and similar, dsu, graphs, greedy

Palindromes Coloring

binary search, greedy, sortings, strings

Division by Two and Permutation

constructive algorithms, flows, graph matchings, greedy, math

Middle Duplication

data structures, dfs and similar, greedy, strings, trees

Balanced Stone Heaps

binary search, greedy

Math Test

bitmasks, brute force, greedy

Set or Decrease

binary search, brute force, greedy, sortings

Berland Music

data structures, greedy, math, sortings

Strange Instructions

data structures, greedy, implementation

New School

binary search, data structures, dp, greedy, implementation, sortings

The Winter Hike

constructive algorithms, greedy, math

Integers Shop

data structures, greedy, implementation

Bipartite Array

dp, greedy

Exact Change

brute force, constructive algorithms, greedy

BA-String

brute force, dp, greedy, implementation, math

Triangles on a Rectangle

geometry, greedy, math

Unusual Minesweeper

binary search, dfs and similar, dsu, greedy, sortings

Let's Play the Hat?

brute force, constructive algorithms, greedy, math

MEX and Increments

constructive algorithms, data structures, dp, greedy, implementation, math, sortings

New Year's Problem

binary search, greedy, sortings

Trader Problem

data structures, dsu, greedy, sortings

Array and Operations

dp, greedy, math

Paprika and Permutation

binary search, greedy, math, sortings

Forbidden Subsequence

constructive algorithms, greedy, sortings, strings

Lexicographically Small Enough

brute force, data structures, greedy, strings

Keep the Average High

dp, greedy, math

Mirror in the String

greedy, strings

Purple Crayon

data structures, dfs and similar, games, graphs, greedy, math, sortings, trees

Menorah

brute force, graphs, greedy, math

And It's Non-Zero

bitmasks, greedy, math

Closing The Gap

greedy, math

Divan and a Store

brute force, constructive algorithms, greedy

Absent Remainder

greedy, implementation, sortings

Max Sum Array

combinatorics, constructive algorithms, greedy, sortings

Armor and Weapons

brute force, dp, greedy, shortest paths

Messages

brute force, dp, greedy, probabilities, sortings

Special Permutation

constructive algorithms, greedy

Robot and Candies

data structures, graph matchings, greedy

Escape The Maze (hard version)

dfs and similar, dp, greedy, shortest paths, trees

Escape The Maze (easy version)

dfs and similar, greedy, shortest paths, trees, two pointers

Squid Game

data structures, dfs and similar, greedy, trees

AmShZ Wins a Bet

data structures, greedy, hashing

AmShZ and G.O.A.T.

binary search, brute force, greedy, implementation, math

Keshi Is Throwing a Party

binary search, greedy

Kalindrome Array

greedy, two pointers

A Stroll Around the Matrix

data structures, greedy, math

Social Network

dsu, graphs, greedy, implementation, trees

Divide and Multiply

greedy, implementation, math, number theory

Game Master

data structures, dfs and similar, dp, graphs, greedy, two pointers

Build the Permutation

constructive algorithms, greedy

Banquet Preparations 2

greedy, sortings, two pointers

Banquet Preparations 1

greedy

Blue-Red Permutation

greedy, math, sortings

Banknotes

greedy, number theory

Update Files

greedy, implementation, math

Array Equalizer

binary search, greedy, implementation, math, number theory, sortings, two pointers

Treelabeling

bitmasks, constructive algorithms, dfs and similar, games, greedy, implementation, trees

Dominant Character

brute force, greedy, implementation, strings

Reverse Sort

greedy, sortings

Era

greedy

Extreme Extension

dp, greedy, math, number theory

Phys Ed Online

data structures, dp, greedy

Difficult Mountain

data structures, dp, greedy, sortings

Optimal Insertion

data structures, divide and conquer, dp, greedy, sortings

Array Elimination

bitmasks, greedy, math, number theory

Array Game

games, greedy, two pointers

Bob's Beautiful Array

bitmasks, brute force, greedy

Weights

constructive algorithms, greedy, two pointers

Make Them Equal

brute force, greedy, math, strings

Changing Brackets

constructive algorithms, data structures, dp, greedy

Gardener and Tree

brute force, data structures, dfs and similar, greedy, implementation, trees

Save More Mice

binary search, greedy, greedy

Make it Divisible by 25

dfs and similar, dp, greedy, math, math

Alice and Recoloring 2

constructive algorithms, flows, graph matchings, greedy

Alice and Recoloring 1

constructive algorithms, greedy