Mahmoud and Ehab and the message

dsu, greedy, implementation

Where is the Pizza?

data structures, dfs and similar, dsu, graphs, implementation, math

Phase Shift

dfs and similar, dsu, graphs, greedy, implementation, strings

Heavy Intervals

constructive algorithms, data structures, dsu, greedy, math, sortings

Replace With the Previous, Minimize

dsu, greedy, strings

Timofey and a tree

dfs and similar, dp, dsu, graphs, implementation, trees

String Transformation 1

dsu, graphs, greedy, sortings, strings, trees, two pointers

Round Dance

dfs and similar, dsu, graphs, shortest paths

Roads not only in Berland

dsu, graphs, trees

Cover it!

dfs and similar, dsu, graphs, shortest paths, trees

Coloring a Tree

dfs and similar, dsu, greedy

PolandBall and Forest

dfs and similar, dsu, graphs, interactive, trees

Edgy Trees

dfs and similar, dsu, graphs, math, trees

Jatayu's Balanced Bracket Sequence

data structures, dsu, graphs, greedy

Unforgivable Curse (hard version)

brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings

Mr. Kitayuta's Colorful Graph

dfs and similar, dp, dsu, graphs

DZY Loves Chemistry

dfs and similar, dsu, greedy

Unforgivable Curse (easy version)

brute force, constructive algorithms, dsu, graphs, greedy, strings

Split Into Two Sets

dfs and similar, dsu, graphs

Little Alawn's Puzzle

combinatorics, dp, dsu, graphs, math

Lomsat gelral

data structures, dfs and similar, dsu, trees

Knight Tournament

data structures, dsu

NEKO's Maze Game

data structures, dsu, implementation

Mocha and Diana (Easy Version)

brute force, constructive algorithms, dsu, graphs, greedy, trees

Secret Passwords

dfs and similar, dsu, graphs

Inversion Graph

data structures, dsu, graphs, math

Bear and Friendship Condition

dfs and similar, dsu, graphs

Hemose Shopping

constructive algorithms, dsu, math, sortings

Misha and Changing Handles

data structures, dsu, strings

K-Complete Word

dfs and similar, dsu, greedy, implementation, strings

Solve The Maze

constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths

Books Exchange (hard version)

dfs and similar, dsu, math

News Distribution

dfs and similar, dsu, graphs

Learning Languages

dfs and similar, dsu

The Lakes

dfs and similar, dsu, graphs, implementation

Find the Different Ones!

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

Cyclic Components

dfs and similar, dsu, graphs

Books Exchange (easy version)

dsu, math

Ice Skating

brute force, dfs and similar, dsu, graphs

Equal or Not Equal

constructive algorithms, dsu, implementation