3-2编程求解质数

#include<iostream>using namespace std;int main(){int n;int c=0;while (cin>>n){cout<<1<<endl;cout<<2<<endl;for (int j=2;j<=n;j++){ for(int i=2;i<j ;i++){c=j%i;  if(c!=0){   cout<<j<<endl;   break;  }  else break;  } } } }