Compilare: main.cpp: In function 'void dfs(int)': main.cpp:25:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int i=0;i<q[nod].size();++i) | ~^~~~~~~~~~~~~~ main.cpp:29:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for (int i=0;i<v[nod].size();++i) | ~^~~~~~~~~~~~~~