Compilare: main.cpp: In function 'void bfs()': main.cpp:48:27: 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 = 0; i < graf[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:101:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 101 | for (int i = 0; i < graf[TMAX + 1].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:122:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 122 | for (int i = 0; i < muchii.size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp:132:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 132 | for (int i = 0; i < sol.size(); ++i) | ~~^~~~~~~~~~~~