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Centroid Decomposition problems
Problem Name Online Judge Contest Difficulty Level
1 The Decoder Categories UVA 1
2 Query on a tree V Categories SPOJ 2
3 Gao on a tree Categories SPOJ 3
4 Prime Distance On Tree Categories CodeChef 3
5 Distance in Tree Categories Codeforces VK Cup 2012 Round 1 3
6 Xenia and Tree Categories Codeforces Codeforces Round #199 (Div. 2) 4
7 Ciel the Commander Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
8 Black and White Tree Categories CodeChef 6
9 Vacation Categories CodeChef 6
10 New Year Tree Categories Codeforces Good Bye 2013 6
11 Union on Tree Categories CodeChef 7
12 Rowena Ravenclaw's Diadem Categories Codeforces Manthan, Codefest 17 8
13 Arkady and a Nobody-men Categories Codeforces Codeforces Round #434 (Div. 1, based on Technocup 2018 Elimination Round 1) 9
14 Sagheer and Kindergarten Categories Codeforces Codeforces Round #417 (Div. 2) 9