Compilare: user.cpp: In function ‘int Biconex(int, int)’: user.cpp:40:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<V[nod].size(); j++) ^ user.cpp:55:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:70:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<Sol.size(); i++) ^ user.cpp:72:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Sol[i].size(); j++) ^