/in/foo.cc: In function 'int main()':
/in/foo.cc:37:47: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'LL* {aka long long int*}' [-Wformat=]
  for (int i = 2; i < n; ++i) scanf("%d", &h[i]);
                                          ~~~~~^