Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:32:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graf[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:67:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<rasp[i].size(); j++) ^