Codeforces problemset search & solutions
Exclude tags.

Review the problem statement from Codeforces (link will open a new tab). When you've matched your problem, go to the solutions.

Search on plain tags, ratings, names, and problem text. Example: brute force or binary search

Solved
Name
Tags
Solutions
Index
Contest
Type
Points
Tutorial
Rating Level
4005 Kingdom and its Cities dfs and similar divide and conquer dp graphs sortings trees Statement D Codeforces Round 339 (Div. 1) {613} PROGRAMMING Tutorial 2800
18260 Masha and a Beautiful Tree dfs and similar divide and conquer graphs sortings trees Statement D Codeforces Round 826 (Div. 3) {1741} PROGRAMMING 107908
43 Burenka and Pether *special data structures dfs and similar divide and conquer dsu graphs sortings trees Statement C XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} PROGRAMMING