Compilare: main.cpp: In function 'void bfs(int)': main.cpp:35:50: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 35 | while (!parcurgere.empty() && sol.size() < n - 1) | ~~~~~~~~~~~^~~~~~~ main.cpp:49:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int i = 0; i < graf[cNod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:71:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for (int i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~