Decomposition

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

Hospital Queue

binary search, graphs, greedy, implementation

Watch the Videos

binary search, constructive algorithms, two pointers

Doremy's Perfect DS Class (Hard Version)

binary search, interactive

Doremy's Perfect DS Class (Medium Version)

binary search, interactive

Doremy's Perfect DS Class (Easy Version)

binary search, interactive

Incinerate

binary search, brute force, data structures, implementation, math, sortings

Good Pairs

binary search, data structures, dp

Make It Connected

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

Quests

binary search, greedy, sortings

Restore the Permutation

binary search, constructive algorithms, data structures, greedy, math

All Possible Digits

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

Range = √Sum

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

N Machines

binary search, brute force, greedy

Bracket Cost

binary search, data structures, divide and conquer, dp, greedy, strings

Number Game

binary search, data structures, games, greedy, implementation

Yet Another Array Counting Problem

binary search, data structures, divide and conquer, dp, flows, math, trees

Yet Another Problem

binary search, bitmasks, constructive algorithms, data structures

Olympiad Training

binary search, data structures, dp, flows, geometry, implementation, sortings

Joking (Easy Version)

binary search, constructive algorithms, interactive, ternary search

Traffic Light

binary search, implementation, two pointers

FTL

binary search, dp

Scuza

binary search, greedy, math

Multi-Colored Segments

binary search, data structures, math, sortings

Reset K Edges

binary search, data structures, dfs and similar, graphs, greedy, trees

Ela Takes Dancing Class

binary search, data structures

Ela's Fitness and the Luxury Number

binary search, implementation, math

Good Subarrays (Hard Version)

binary search, data structures, dp, two pointers

Good Subarrays (Easy Version)

binary search, data structures, schedules, 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

Meeting on the Line

binary search, geometry, greedy, implementation, math, ternary search

Illumination

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

Mainak and the Bleeding Polygon

binary search, geometry, implementation, math

Garage

binary search, geometry, math

Deducing Sortability

binary search, bitmasks, math

Circular Mirror

binary search, combinatorics, geometry, math, two pointers

Basketball Together

binary search, greedy, sortings

Min-Max Array Transformation

binary search, greedy, two pointers

Fighting Tournament

binary search, data structures, implementation, two pointers

Path Prefixes

binary search, data structures, dfs and similar, trees

Triameter

binary search, data structures, dfs and similar, trees

LCM Sum (easy version)

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

Empty Graph

binary search, constructive algorithms, data structures, greedy, shortest paths

Two Arrays

binary search, games, graph matchings

Rain

binary search, brute force, data structures, geometry, greedy, implementation, math

Rorororobot

binary search, data structures, greedy, math

Replace

binary search, data structures

Doremy's IQ

binary search, constructive algorithms, greedy, implementation

Qpwoeirut and Vertices

binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees

Chopping Carrots (Easy Version)

binary search, brute force, constructive algorithms, greedy, number theory

Mark and Professor Koro

binary search, bitmasks, brute force, combinatorics, data structures, greedy

Yet Another Problem About Pairs Satisfying an Inequality

binary search, data structures, dp, greedy, sortings

Permutation Restoration

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

Schedule Management

binary search, greedy, implementation, two pointers

River Locks

binary search, dp, greedy, math

Fixed Point Guessing

binary search, constructive algorithms, interactive

Guess The String

binary search, constructive algorithms, interactive

awoo's Favorite Problem

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

Permutation Graph

binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths

I Might Be Wrong

binary search, greedy, two pointers

Binary Deque

binary search, implementation, two pointers

Max GEQ Sum

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

Count the Trains

binary search, data structures, greedy, sortings

Price Maximization

binary search, greedy, math, two pointers

Cute number

binary search, brute force, data structures, dsu, implementation, math

Sanae and Giant Robot

binary search, brute force, data structures, dsu, greedy, sortings

MEX vs DIFF

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

Binary String

binary search, greedy, strings, two pointers

Toss a Coin to Your Graph...

binary search, dfs and similar, dp, graphs

Eating Queries

binary search, greedy, sortings

Breaking the Wall

binary search, brute force, constructive algorithms, greedy, math

notepad.exe

binary search, constructive algorithms, greedy, interactive

Dolce Vita

binary search, brute force, greedy, math

Very Suspicious

binary search, brute force, geometry, greedy, implementation, math

Eating Candies

binary search, data structures, greedy, two pointers

Even Split

binary search, constructive algorithms, greedy, math

Tree Infection

binary search, greedy, sortings, trees

Teleporters

binary search, greedy

Water the Trees

binary search, greedy, math

Line Empire

binary search, brute force, dp, greedy, implementation, math

For Gamers. By Gamers.

binary search, brute force, greedy, math, sortings

Parametric MST

binary search, constructive algorithms, graphs, greedy, math, sortings

Tower Defense

binary search, brute force, data structures

Nearest Excluded Points

binary search, data structures, dfs and similar, graphs, shortest paths

Rescheduling the Exam

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

Anonymity Is Important

binary search, brute force, data structures, dsu, greedy, sortings

Best Pair

binary search, brute force, implementation

Spanning Tree Queries

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

Distance Tree (hard version)

binary search, dfs and similar, shortest paths, trees

Distance Tree (easy version)

binary search, data structures, dfs and similar, graphs, shortest paths, trees

New Year Concert

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

Strange Test

binary search, bitmasks, brute force, dp, math

Range and Partition

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

Spaceship Crisis Management

binary search, data structures, geometry, sortings

Groceries in Meteor Town

binary search, data structures, dsu, trees

Meximum Array

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

Martial Arts Tournament

binary search, brute force, greedy, math

Monsters And Spells

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