/in/foo.cc: In function 'int main()':
/in/foo.cc:84:36: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         if(vis[i])printf("%d\n",i-1);
                                    ^
/in/foo.cc:78:23: warning: unused variable 'maxdep' [-Wunused-variable]
     int de=maxdep/2+1,maxdep=0;
                       ^~~~~~