[UVA][圖論] 11550 - Demanding Dilemma
Problem D DEMANDING DILEMMA A simple undirected graph is an ordered pair G = (V, E) where V is a non-empty set of vertices, and E is a set of unordered pairs (u, v) where u and v are in V and u ≠ v. If S is a set, define |S| as the size of S. An incidence matrix M is a |V| x |...
