Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int i = 0; i < mst[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:66:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for(int k = 0; k < v[j].size(); k++) | ~~^~~~~~~~~~~~~