Animals

dp, greedy

Sale

greedy, sortings

Wonderful Randomized Sum

greedy

What is for dinner?

greedy, implementation

Sysadmin Bob

greedy, implementation, strings

Tricky and Clever Password

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

King's Problem?

geometry, greedy

Unordered Subsequence

constructive algorithms, greedy

Tournament

bitmasks, brute force, dfs and similar, greedy

Parquet

combinatorics, constructive algorithms, greedy, implementation

Regular Bracket Sequence

greedy

You're Given a String...

brute force, greedy

Segments

greedy, sortings

Deletion of Repeats

greedy, hashing, string suffix structures

Seller Bob

brute force, dp, greedy

Hierarchy

dfs and similar, dsu, greedy, shortest paths

Burglar and Matches

greedy, implementation, sortings

Fruits

greedy, implementation, sortings

Forward, march!

binary search, dp, greedy

Alice, Bob and Chocolate

greedy, two pointers

Longest Regular Bracket Sequence

constructive algorithms, data structures, dp, greedy, sortings, strings

Before an Exam

constructive algorithms, greedy

Least Cost Bracket Sequence

greedy

Lorry

greedy, sortings

Shortest path of the king

greedy, shortest paths