@[Dgucheng](/user/428535)
```cpp
#include<stdio.h>
#include<math.h>
int main()
{
int a[100],i,j,k,n,m;
scanf ("%d",&n);
for (i=0;i<n;i++)
scanf ("%d",&a[i]);
for (i=0;i<n;i++)
{
j=sqrt(a[i]);
k=1;
for (m=2;m<=j;m++)
{
if (a[i]%m ==0)
{k=0;break;}
}
if (k==0)
a[i]=0;
}
for (i=0;i<n;i++)
{
if (a[i]!=0)
printf("%d ",a[i]);
}
return 0;
}
```
by zltqwq @ 2021-01-14 17:57:45
并且这题是让你练习线性筛法的，朴素筛法会 TLE
by zltqwq @ 2021-01-14 17:58:14
@[zltzlt](/user/275273) 好的！谢谢！
by Dgucheng @ 2021-01-14 18:09:06