Compilare: main.cpp: In function 'void dfs(int)': main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i = 0; i < mh[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:102:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for(int i = 0; i < mh[x].size(); i++){ | ~~^~~~~~~~~~~~~~