已解决
```cpp
//luogu P1075
#include <iostream>
using namespace std;
int main(){
int n,p=0;
cin >> n;
for(int i=1;i*i<n;i++)
{
if(n%i==0 && i>p) p=i;
}
cout << n/p;
return 0;
}
```
by Clean_Breeze @ 2019-11-10 14:34:44