Compilare: user.cpp:17:36: warning: overflow in implicit constant conversion [-Woverflow] int n, m, i, j, p ,q, x, y, minu = 9999999999999, nr, sol[NMAX]; ^ user.cpp: In function ‘void DFS(int, int)’: user.cpp:58:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < M[x].size(); ++i) ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:84:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < M[x].size(); ++i) ^