Compilare: main.cpp: In function 'void solve(int, int)': main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (int i=0;i<g[nod].size ();++i){ | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:65:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for (int j=1;j<c[i].size ();++j){ | ~^~~~~~~~~~~~~