考虑 $num=21$。
加一个同时被 $3$ 和 $7$ 整除的特判。
by ydzr00000 @ 2022-09-03 21:46:05
@[Yu09217777](/user/742482)
您似乎没有判断答案为
```
3 7
```
的情况呢
by a046957 @ 2022-09-03 21:47:29
通过了，谢谢
by Yu09217777 @ 2022-09-04 08:47:07
用$else$ $if$会好一点
by Lizard_Lucas_AC @ 2022-10-05 10:59:44
@[Yu09217777](/user/742482)
你这个纯属枚举
要是数据大一点就没得写
```cpp
#include <iostream>
using namespace std;
int x,i;
bool p = 1;
int main()
{
cin >> x;
for(i = 3;i < 7;i += 2)
{
if(x % i == 0)
{
cout << "i ";
p = 0;
}
}
if(p = 1)
{
cout << "n";
}
return 0;
}
```
by woshuai6 @ 2023-08-27 18:26:43