Compilare: main.cpp: In function 'int bfs(int)': main.cpp:29:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for (int i=0; i<v[poz].size(); i++) { | ~^~~~~~~~~~~~~~ main.cpp:44:1: warning: no return statement in function returning non-void [-Wreturn-type] 44 | } | ^