Slime and Hats

constructive algorithms, dp, greedy

Kuroni the Private Tutor

binary search, greedy

Balanced Distribution

data structures, dp, greedy

XOR-ranges

dp, greedy

Rin and The Unknown Flower

constructive algorithms, greedy, interactive, math

Egor and an RPG game

constructive algorithms, greedy

Tanya is 5!

graph matchings, graphs, greedy, schedules

Nezzar and Tournaments

data structures, greedy

Dreamoon Loves AA

binary search, greedy

Moving Walkways

data structures, greedy, math

Finding satisfactory solutions

combinatorics, dp, graphs, greedy, math

Showing Off

flows, graph matchings, greedy, implementation

Breadboard Capacity (easy version)

dp, flows, greedy

New Road Network

constructive algorithms, greedy, math

Rainbow Triples

binary search, data structures, flows, greedy

Organizing a Race

data structures, greedy

Spiders Evil Plan

greedy, trees

An easy problem about trees

dp, games, greedy, trees

JS Minification

greedy, implementation

Boring Card Game

data structures, greedy, trees

Split

binary search, data structures, dp, greedy

Qingshan and Daniel

brute force, data structures, greedy, implementation

Summer Dichotomy

2-sat, data structures, dfs and similar, greedy

Bear and Bowling

data structures, greedy

Clockwork Bomb

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

To Hack or not to Hack

brute force, dp, greedy

Show Must Go On

binary search, brute force, greedy, shortest paths

Secret Letters

data structures, dp, greedy

Computer Game

dp, greedy, math, probabilities

Tokitsukaze and Explosion

binary search, greedy

AB Tree

dp, greedy, trees

To Make 1

bitmasks, constructive algorithms, dp, greedy, number theory

Huffman Coding on Segment

data structures, greedy

Raffles

data structures, dp, greedy, math

Flip and Reverse

data structures, graphs, greedy

Captain America

flows, greedy

To Play or not to Play

greedy

Wizards and Roads

data structures, divide and conquer, graph matchings, graphs, greedy

World of Tank

dp, greedy

Buy One, Get One Free

dp, greedy

A Story of One Country (Hard)

brute force, greedy, sortings

Berland Miners

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

The Thorny Path

greedy, math

Bear and Rectangle Strips

dp, greedy

The Majestic Brown Tree Snake

dfs and similar, dp, greedy, trees, two pointers

Candies Game

constructive algorithms, greedy

Black, White and Grey Tree

binary search, constructive algorithms, dfs and similar, dp, greedy, trees

Lucky Numbers (Hard Version)

dp, greedy

Abandoning Roads

brute force, dp, graphs, greedy

Frequency Problem (Hard Version)

data structures, greedy, two pointers

Fire and Ice

greedy

Heaven Tour

data structures, greedy

Restore the Tree

graphs, greedy, trees

Candy Shop

greedy

Sheep

binary search, greedy

Chess Championship

constructive algorithms, flows, greedy, math

Distinctification

data structures, dsu, greedy

Divide Powers

constructive algorithms, greedy

Ones

dp, greedy, shortest paths

Johnny and James

greedy, implementation, math, trees

Family Photos

games, greedy

Ciel and Flipboard

dp, greedy, math

Lucky Numbers (Easy Version)

dp, greedy

Pumping Stations

brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees

GCD Groups 2

greedy, number theory, probabilities

Omkar and Last Floor

dp, greedy, two pointers

Roads in Yusland

data structures, dp, greedy

Mr. Kitayuta vs. Bamboos

binary search, greedy

Goods transportation

dp, flows, greedy

Snow sellers

greedy, sortings

Greedy Petya

*special problem, dfs and similar, graphs, greedy

Ordering T-Shirts

greedy

Sequence Recovery

bitmasks, data structures, greedy

Kojiro and Furrari

dp, greedy

Forward, march!

binary search, dp, greedy

Frog Fights

data structures, greedy

Tournament Construction

constructive algorithms, dp, graphs, greedy, math

Road Repairs

dfs and similar, graphs, greedy

String and Operations

dp, greedy

The Next Good String

data structures, greedy, hashing, strings

Boboniu and Jianghu

dp, greedy, sortings, trees

Levko and Game

graphs, greedy, shortest paths

Have You Ever Heard About the Word?

greedy, hashing, string suffix structures, strings

The Red Button

combinatorics, dfs and similar, dsu, graphs, greedy

Rearrange

brute force, constructive algorithms, graphs, greedy, sortings

Bear and Paradox

binary search, greedy, math, sortings

Tricky and Clever Password

binary search, constructive algorithms, data structures, greedy, hashing, strings

Polygons

greedy, math, number theory

Sum

data structures, divide and conquer, dp, greedy

Shop

greedy

Optimizer

graphs, greedy, hashing, implementation

R3D3’s Summer Adventure

dp, greedy

Metro Scheme

graphs, greedy

Game On Tree

data structures, dfs and similar, greedy, trees

Prime Divisors Selection

binary search, greedy, math, number theory

Concise and clear

brute force, greedy, implementation, math

Is It Rated?

greedy, interactive, math, probabilities

Adilbek and the Watering System

data structures, greedy, sortings

T-shirt

dp, greedy, probabilities

Once in a casino

constructive algorithms, greedy, implementation, math