Yet Another Real Number Problem

binary search, data structures, divide and conquer, greedy, implementation, math

Balanced

constructive algorithms, data structures, greedy, implementation, math

Genokraken

constructive algorithms, data structures, graphs, greedy, implementation, interactive, trees, two pointers

Penchick and Chloe's Trees

data structures, dfs and similar, dp, greedy, implementation, math, sortings, trees

Orangutan Approved Subarrays

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

MEXimize the Score

combinatorics, data structures, dp, greedy, implementation, math

Alice's Adventures in Cards

constructive algorithms, data structures, dp, graphs, greedy, implementation, ternary search

The Endspeaker (Hard Version)

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

Action Figures

binary search, brute force, constructive algorithms, data structures, greedy, implementation

Digital Village (Easy Version)

brute force, data structures, dfs and similar, dp, dsu, fft, graphs, greedy, implementation, math, trees

Adjust The Presentation (Hard Version)

constructive algorithms, data structures, greedy, implementation, sortings

Max Plus Min Plus Size

data structures, dp, dsu, greedy, implementation, matrices, sortings

Speedbreaker

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

Milky Days

brute force, data structures, greedy, implementation

Game in Tree (Easy Version)

binary search, brute force, data structures, dp, games, greedy, implementation, trees

Alternating String

brute force, data structures, dp, greedy, implementation, strings

Iris and Adjacent Products

data structures, greedy, implementation, math

Subtangle Game (Hard Version)

data structures, dp, games, greedy, implementation

Colored Portals

binary search, brute force, data structures, graphs, greedy, implementation, shortest paths

Longest Max Min Subsequence

brute force, constructive algorithms, data structures, greedy, implementation

Eliminating Balls With Merging (Hard Version)

binary search, brute force, data structures, divide and conquer, greedy, implementation

Permutation of Rows and Columns

constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings

Computing Machine

brute force, data structures, dp, greedy, implementation

Elections

data structures, greedy, implementation, math

Manhattan Permutations

constructive algorithms, data structures, greedy, implementation, math

Chain Reaction

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

Learning to Paint

binary search, data structures, dfs and similar, dp, greedy, implementation, sortings

Pokémon Arena

data structures, graphs, greedy, implementation, shortest paths, sortings

Andrey's Tree

binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees

Microcycle

data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees

Minimize Inversions

constructive algorithms, data structures, greedy, implementation, sortings

Set To Max (Hard Version)

constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings

LIS?

data structures, greedy, implementation

Vika and the Bridge

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

Professor Higashikata

data structures, dsu, greedy, implementation, strings

Editorial for Two

binary search, data structures, greedy, implementation

Survey in Class

brute force, data structures, greedy, implementation, sortings

Traveling in Berland

binary search, data structures, graphs, greedy, implementation

Subsequence Addition (Easy Version)

brute force, data structures, dp, greedy, implementation, sortings

Recent Actions

data structures, greedy, implementation, math

Three Sevens

brute force, data structures, greedy, implementation

Labeling the Tree with Distances

data structures, dp, greedy, hashing, implementation, trees

Rectangle Shrinking

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

Number Game

binary search, data structures, games, greedy, implementation

Zero-Sum Prefixes

brute force, data structures, dp, greedy, implementation

Misha and Paintings

constructive algorithms, data structures, greedy, implementation, math

Robot in a Hallway

data structures, dp, greedy, implementation, ternary search

Remove Prefix

data structures, greedy, implementation

Rain

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

awoo's Favorite Problem

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

Restoring the Duration of Tasks

data structures, greedy, implementation

Longest Strike

data structures, greedy, implementation, sortings, two pointers

Desktop Rearrangement

data structures, greedy, implementation

MinimizOR

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

Reverse Sort Sum

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

Alice and the Cake

data structures, greedy, implementation, sortings

Rescheduling the Exam

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

Big Brush

constructive algorithms, data structures, greedy, implementation

Monsters And Spells

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

Strange Instructions

data structures, greedy, implementation

New School

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

Integers Shop

data structures, greedy, implementation

MEX and Increments

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

Gardener and Tree

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

Portal

brute force, data structures, dp, greedy, implementation

The Strongest Build

binary search, brute force, data structures, dfs and similar, graphs, greedy, hashing, implementation

Four Vertices

constructive algorithms, data structures, graphs, greedy, implementation, shortest paths

Points Movement

data structures, dp, greedy, implementation, sortings

Seating Arrangements (hard version)

data structures, greedy, implementation, sortings, two pointers

Game with Cards

binary search, constructive algorithms, data structures, dp, greedy, implementation

Omkar and Medians

data structures, greedy, implementation

Robot Collisions

data structures, greedy, implementation, sortings

Compression and Expansion

brute force, data structures, greedy, implementation, trees

Nastia Plays with a Tree

constructive algorithms, data structures, dfs and similar, dp, dsu, greedy, implementation, trees

Cut and Stick

binary search, data structures, greedy, implementation, sortings

Qingshan and Daniel

brute force, data structures, greedy, implementation

Pekora and Trampoline

brute force, data structures, dp, greedy, implementation

Cheap Dinner

brute force, data structures, graphs, greedy, implementation, sortings, two pointers

Painting the Array II

constructive algorithms, data structures, dp, greedy, implementation

Painting the Array I

constructive algorithms, data structures, dp, greedy, implementation

Array Destruction

brute force, constructive algorithms, data structures, greedy, implementation, sortings

Rating Compression

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

Identify the Operations

combinatorics, data structures, dsu, greedy, implementation

Greedy Shopping

binary search, data structures, divide and conquer, greedy, implementation

Numbers on Whiteboard

constructive algorithms, data structures, greedy, implementation, math

Pokémon Army (hard version)

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

Shurikens

data structures, greedy, implementation

Binary String To Subsequences

constructive algorithms, data structures, greedy, implementation

Two Types of Spells

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

Applejack and Storages

constructive algorithms, data structures, greedy, implementation

Captain Flint and Treasure

data structures, dfs and similar, graphs, greedy, implementation, trees

Removing Leaves

data structures, greedy, implementation, trees

Reading Books (hard version)

data structures, greedy, implementation, sortings, ternary search, two pointers

DeadLee

data structures, dfs and similar, greedy, implementation, sortings

Rotation Matching

constructive algorithms, data structures, greedy, implementation

Are You Fired?

constructive algorithms, data structures, greedy, implementation

Restore the Permutation by Sorted Segments

brute force, constructive algorithms, data structures, greedy, implementation

Nastya and Strange Generator

brute force, data structures, greedy, implementation

Drazil Likes Heap

constructive algorithms, data structures, greedy, implementation

Frog Jumps

binary search, data structures, dfs and similar, greedy, implementation