Compilare: main.cpp: In function 'int bfs(int, int)': main.cpp:27:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int i = 0; i < g[curent].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:38:12: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] 38 | return last; | ^~~~