Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:33:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ^ user.cpp:31:9: warning: unused variable ‘k’ [-Wunused-variable] int k = 0; ^ user.cpp:32:12: warning: unused variable ‘w’ [-Wunused-variable] celula w[16005]; ^ user.cpp: In function ‘void dfs2(int)’: user.cpp:64:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp:70:17: warning: unused variable ‘nr’ [-Wunused-variable] int nr = up[father]; ^ user.cpp:54:9: warning: unused variable ‘k’ [-Wunused-variable] int k = 0; ^ user.cpp:55:9: warning: unused variable ‘w’ [-Wunused-variable] int w[16005]; ^ user.cpp:58:9: warning: unused variable ‘nodesup’ [-Wunused-variable] int nodesup = n ; ^ user.cpp: In function ‘int main()’: user.cpp:95:10: warning: overflow in implicit constant conversion [-Woverflow] sol = 10000000000; ^