Compilare: main.cpp: In function 'void bfs(int, std::vector<std::vector<int> >&, std::vector<int>)': main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=0; i<v[current].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i=1; i<distanta.size(); i++) | ~^~~~~~~~~~~~~~~~