一维数组a中有n个整数，编写程序，在数组a中第k位置插入一个元素d

Question

Answer 1

int t;
if(k>n)
return 0;
for(int i = 0; i<n; i++)
{
  if(i >= k-1)
  {
      t = d;
      d = a[i];
      a[i] = t;
  }
}

a[i] = d;