Compilare: main.cpp: In function 'void DFS(int)': main.cpp:13:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i=0;i<G[nod].size();i++){ | ~^~~~~~~~~~~~~~ main.cpp: In function 'void BFS(int)': main.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i=0;i<G1[nod1].size();i++){ | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int j=0;j<G[i].size();j++){ | ~^~~~~~~~~~~~