Compilare: main.cpp: In function 'void BFS(int)': main.cpp:30:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < G[Nod].size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:59:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for (int j = 0; j < Sol.size(); j++) | ~~^~~~~~~~~~~~