题解 - 南师大算法竞赛域

3
赵晨希@吴江区实验初中 (赵晨希) LV 8 @ 2021-01-08 19:49:22

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
int x;
cin>>x;
int n=sqrt(x);
int x1=2;

while(x1<=n)
{
if(x%x1==0)
break;
x1=x1+1;
}
if(x1<=n)
cout<<"No"<<endl;
else
cout<<"Yes"<<endl;
return 0;
}
1
朱禹丞 ̃͛19230613 (duke4994) LV 8 @ 2023-08-05 00:47:16

#include <bits/stdc++.h>
using namespace std;int main(){int n,i=2;cin>>n;for (;ii<=n;i++)if(!(n%i)){i=0;break;}if(i&&n!=1)cout<<"Yes";else cout<<"No";}//**请勿模仿**

潘佑博@吴江区实验初级中学 (PJing潘佑博) LV 8 @ 2021-01-16 21:15:15

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
int x;
cin>>x;
int n=sqrt(x);
int x1=2;

while(x1<=n)
{
if(x%x1==0)
break;
x1=x1+1;
}
if(x1<=n)
cout<<"No"<<endl;
else
cout<<"Yes"<<endl;
return 0;
}

-2
姜浩宇@江陵实验初级中学(initial fish) (老红糖了) LV 7 @ 2021-01-25 16:03:52

#include <iostream>
using namespace std;
int main()
{
int a,b=2;
cin>>a;

while(b<=a-1)
{
if(a%b==0)
break;
b++ ;
}

if(b<a)
cout<<"No";
else
if(a!=1)
cout<<"Yes";
else
cout<<"No";

return 0;
}
-5
周冠杰@苏州湾 (Jerry200816) LV 9 @ 2021-01-10 19:33:07

#include <iostream>
using namespace std;

int main()
{
int x;
cin>>x;

int x1=2;
int b=0;
while(x1<x)
{
if( x%x1==0 )
;
x1=x1+1;
b++;
}
if(b==2)
cout<<"Yes"<<endl;
else
cout<<"No"<<endl;
return 0;
}