L1-002 打印沙漏 （20 分)

https://pintia.cn/problem-sets/994805046380707840/problems/994805145370476544

#include

using namespace std;

int main(){
   double n;
   int t;
   cin>>n;
   char ss;
   cin>>ss;
   t = (int)n;
   n += 1;
   n = n/2;
   int x = (int)sqrt(n);
   for(int i=0; i