Compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:25:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<L[y].size();i++){ ^ user.cpp: In function ‘int main()’: user.cpp:34:21: warning: unused variable ‘x’ [-Wunused-variable] int main(){int maxx,x,poz,i; ^ user.cpp:40:9: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] bfs(poz); ^