Closed koba-e964 closed 3 years ago
https://ei1333.hateblo.jp/entry/2020/02/12/150319 https://judge.yosupo.jp/problem/tree_decomposition_width_2
Done https://github.com/koba-e964/contest/commit/75f4c732b22590d05d25c744ba91bf1fd8ed69f6
https://ei1333.hateblo.jp/entry/2020/02/12/150319 https://judge.yosupo.jp/problem/tree_decomposition_width_2