Gee_Zer的博客

C. Edgy Treestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a tree (a connected undirected graph without cycles) of n vertices...

E. Cyclic Componentstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given an undirected graph consisting of n vertices and m edges. Y...