Compilare: user.cpp: In function ‘void dfsv(int)’: user.cpp:31:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();++i) ^ user.cpp: In function ‘void dfsw(int)’: user.cpp:42:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<w[nod].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:74:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<rasp.size();++j) ^ user.cpp:101:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<h[t].size();++j) ^