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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

Game Master

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

Banquet Preparations 2

greedy, sortings, two pointers

Array Equalizer

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

Frog Traveler

data structures, dfs and similar, dp, graphs, shortest paths, two pointers

Array Game

games, greedy, two pointers

Weights

constructive algorithms, greedy, two pointers

Delete Two Elements

data structures, dp, implementation, math, two pointers

Bored Bakry

bitmasks, greedy, math, two pointers

Jumping Through the Array

binary search, data structures, graphs, two pointers

Korney Korneevich and XOR (hard version)

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

Grandma Capa Knits a Scarf

brute force, data structures, greedy, strings, two pointers

Xor of 3

brute force, constructive algorithms, greedy, two pointers

Inconvenient Pairs

binary search, data structures, implementation, sortings, two pointers

Seating Arrangements (hard version)

data structures, greedy, implementation, sortings, two pointers

Mocha and Diana (Hard Version)

brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers

Up the Strip

brute force, dp, math, number theory, two pointers

Gates to Another World

bitmasks, data structures, dsu, two pointers

Boring Segments

data structures, sortings, trees, two pointers

Backspace

dp, greedy, strings, two pointers

Stringforces

binary search, bitmasks, brute force, dp, strings, two pointers

Excellent Arrays

binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers

Integers Have Friends

binary search, data structures, divide and conquer, math, number theory, two pointers

Array Stabilization (GCD version)

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

Air Conditioners

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

Pair Programming

greedy, two pointers

PriceFixed

binary search, greedy, implementation, sortings, two pointers

Number of Pairs

binary search, data structures, math, two pointers

Erase and Extend (Hard Version)

binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers

Erase and Extend (Easy Version)

binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers

Unstable String

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

Assimilation IV

combinatorics, dp, math, probabilities, two pointers