Compilare: main.cpp: In function 'void solve(std::pair<int, int>)': main.cpp:30:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i = 0; i < edges[node.second].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:48:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for(int i = 2; i < ans.size(); i++) | ~~^~~~~~~~~~~~