Compilare: main.cpp: In function 'bool BFS(std::vector<std::vector<int> >&, std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:24:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i = 0; i < graf[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:95:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | for(int j = 0; j < graf[i].size(); j++) | ~~^~~~~~~~~~~~~~~~