foo.cc: In member function ‘void MaxHeap::backspace()’:
foo.cc:65:27: warning: unused variable ‘now’ [-Wunused-variable]
   65 |                 long long now=a[cnt].pos;
      |                           ^~~
foo.cc: In function ‘int main()’:
foo.cc:101:31: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=]
  101 |                 else printf("%d\n",a.a[a.heap[1]].val);
      |                              ~^    ~~~~~~~~~~~~~~~~~~
      |                               |                   |
      |                               int                 long long int
      |                              %lld

正在同步测试数据，请稍后