Compilare: main.cpp: In function 'void bfs()': main.cpp:39:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (int i = 0; i < graf[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for (int i = 0; i < graf[TMAX + 1].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:113:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 113 | for (int i = 0; i < muchii.size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp:123:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 123 | for (int i = 0; i < sol.size(); ++i) | ~~^~~~~~~~~~~~