@[YYaini](/user/877957)
```
1
9
```
by Lazy_Labs @ 2023-05-19 16:13:16
@Lazy_Labs谢谢
by YYaini @ 2023-05-19 16:30:00
and?是什么意思，并且用&&
by lhbhghbg @ 2023-06-02 18:00:56
题目说要筛掉的应该质数，不是奇数
```cpp
#include<bits/stdc++.h>
using namespace std;
int b[100000];
int isprime(int x){
if(x==1) return false;
for(int i=2;i*i<=x;i++){
if(x%i==0){
return false;
}
}
return true;
}
int main(){
int a;
scanf("%d",&a);
for(int i=1;i<=a;i++){
scanf("%d",&b[i]);
}
for(int i=1;i<=a;i++){
if(!isprime(b[i])){
continue;
}
printf("%d ",b[i]);
}
return 0;
}```
by laiyiming @ 2023-06-06 20:59:20