Compilare: main.cpp: In function 'void DF(int)': main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=0;i<G[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int i=0;i<ciclu.size();i++)fo<<ciclu[i]<<' '; | ~^~~~~~~~~~~~~