Compilare: main.cpp: In function 'bool bfs()': main.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i = 0; i < q.size(); i++){ | ~~^~~~~~~~~~ main.cpp:41:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int j = 0; j < v[node].size(); j++){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:58:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int i = 0; i < v[n].size(); i++){ | ~~^~~~~~~~~~~~~