Ira and Flamenco

combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers

Maximum Sum

brute force, sortings, two pointers

Range Sorting (Easy Version)

binary search, dp, dsu, greedy, trees, two pointers

Counting Orders

combinatorics, math, sortings, two pointers

JoJo's Incredible Adventures

math, strings, two pointers

Misha and Apples

brute force, data structures, dp, two pointers

The Butcher

geometry, greedy, implementation, sortings, two pointers

Balancing Weapons

binary search, brute force, data structures, math, two pointers

Vlad and the Nice Paths (hard version)

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

Petya, Petya, Petr, and Palindromes

binary search, brute force, data structures, two pointers

Survival of the Weakest (hard version)

greedy, math, sortings, two pointers

There Should Be a Lot of Maximums

brute force, data structures, dfs and similar, dp, trees, two pointers

Li Hua and Array

brute force, data structures, dsu, math, number theory, two pointers

Maximum Subarray

data structures, dp, greedy, two pointers

Scoring Subsequences

binary search, greedy, math, two pointers

Velepin and Marketing

binary search, data structures, dp, greedy, sortings, two pointers

Moscow Gorillas

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

Dora and Search

constructive algorithms, data structures, two pointers

Min Max Sort

binary search, brute force, greedy, math, two pointers

Prepend and Append

implementation, two pointers

Serval and Inversion Magic

brute force, implementation, strings, two pointers

Moving Dots

binary search, brute force, combinatorics, math, two pointers

Treasure Hunt

data structures, divide and conquer, two pointers

Rectangle Shrinking

binary search, brute force, data structures, greedy, implementation, two pointers

Quiz Master

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

Beppa and SwerChat

two pointers

Same Count One

brute force, constructive algorithms, greedy, implementation, two pointers

Gaining Rating

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

Hossam and a Letter

brute force, dp, implementation, two pointers

Hossam and Friends

binary search, constructive algorithms, dp, two pointers

Decomposition

binary search, brute force, data structures, divide and conquer, dp, two pointers

Watch the Videos

binary search, constructive algorithms, two pointers

Make It Connected

binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers

Challenging Valleys

implementation, two pointers

Range = √Sum

binary search, brute force, constructive algorithms, math, two pointers

Minecraft Series

brute force, two pointers

Rebellion

constructive algorithms, greedy, two pointers

MEX vs MED

math, two pointers

Traffic Light

binary search, implementation, two pointers

Minimize the Thickness

brute force, greedy, math, two pointers

Balance Addicts

combinatorics, dp, math, two pointers

Good Subarrays (Hard Version)

binary search, data structures, dp, two pointers

Good Subarrays (Easy Version)

binary search, data structures, schedules, two pointers

Slime Escape

data structures, dp, greedy, two pointers

Sheikh (Hard Version)

binary search, bitmasks, brute force, greedy, implementation, two pointers

Sheikh (Easy version)

binary search, bitmasks, greedy, two pointers

Valiant's New Map

binary search, brute force, data structures, dp, two pointers

Prefixes and Suffixes

constructive algorithms, strings, two pointers

Cut Substrings

combinatorics, dp, hashing, strings, two pointers

Friends and the Restaurant

greedy, sortings, two pointers

Illumination

binary search, bitmasks, brute force, combinatorics, dp, math, two pointers

Letter Picking

constructive algorithms, dp, games, two pointers

Circular Mirror

binary search, combinatorics, geometry, math, two pointers

Min-Max Array Transformation

binary search, greedy, two pointers

Xor-Subsequence (easy version)

bitmasks, brute force, dp, strings, trees, two pointers

Fighting Tournament

binary search, data structures, implementation, two pointers

LCM Sum (hard version)

brute force, data structures, math, number theory, two pointers

LCM Sum (easy version)

binary search, brute force, combinatorics, math, number theory, two pointers

Chopping Carrots (Hard Version)

brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers

Permutation Restoration

binary search, data structures, greedy, math, sortings, two pointers

Schedule Management

binary search, greedy, implementation, two pointers

Three Days Grace

data structures, dp, greedy, math, number theory, two pointers

PermutationForces II

brute force, combinatorics, greedy, sortings, trees, two pointers

awoo's Favorite Problem

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

Maximum Product?

brute force, combinatorics, dp, greedy, implementation, math, two pointers

I Might Be Wrong

binary search, greedy, two pointers

2^Sort

data structures, dp, sortings, two pointers

Binary Deque

binary search, implementation, two pointers

Max GEQ Sum

binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers

Shoe Shuffling

constructive algorithms, greedy, implementation, two pointers

Price Maximization

binary search, greedy, math, two pointers

Black and White Stripe

implementation, two pointers

Lex String

brute force, greedy, implementation, sortings, two pointers

Diverse Segments

data structures, two pointers

MEX vs DIFF

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

MCMF?

data structures, flows, graphs, greedy, sortings, two pointers

Binary String

binary search, greedy, strings, two pointers

Longest Strike

data structures, greedy, implementation, sortings, two pointers

Cyclic Rotation

constructive algorithms, greedy, implementation, two pointers

Eating Candies

binary search, data structures, greedy, two pointers

MinimizOR

bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers

Maximum Product Strikes Back

brute force, implementation, math, two pointers

Reverse Sort Sum

constructive algorithms, data structures, greedy, implementation, math, two pointers

Subtract Operation

data structures, greedy, math, two pointers

Quality vs Quantity

brute force, constructive algorithms, greedy, sortings, two pointers

Two Arrays

bitmasks, brute force, combinatorics, greedy, hashing, math, two pointers

Two Posters

brute force, data structures, greedy, two pointers

New Year Concert

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

Paint the Middle

dp, greedy, sortings, two pointers

Range and Partition

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

Meximum Array

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

Not Escaping

data structures, dp, implementation, shortest paths, two pointers

Monsters And Spells

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

Shuffle

combinatorics, math, two pointers

Permutation and Queries

brute force, data structures, divide and conquer, two pointers

ATM and Students

binary search, data structures, two pointers

Escape The Maze (easy version)

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

Kalindrome Array

greedy, two pointers

Interesting Sections

data structures, divide and conquer, meet-in-the-middle, two pointers

Complex Market Analysis

binary search, dp, implementation, number theory, schedules, two pointers