Compilare: main.cpp: In function 'void dfsd(int)': main.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(int i=0; i<G[nod].size(); i++){ | ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfsu(int, int)': main.cpp:32:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i=0; i<G[nod].size(); i++){ | ~^~~~~~~~~~~~~~