无平方因子的数
#include<cstdlib>#include<iostream>#include<cstdio>#include<cmath>#include<set>#include<vector>#include<cstring>#include <algorithm>#define LL long long#define inf 0x7fffffff#define E 1e-9#define M 100#define N 1000005using namespace std;int n,k,h,m,e;int vis[N],ans[N];int main(){//#ifndef ONLINE_JUDGE// freopen("ex.in","r",stdin);//#endif int n; while(1) { scanf("%d%d",&m,&n); int s=sqrt(n); for(int i=2; i<=s; i++) if(!vis[i]) {// cout<<"i="<<i<<endl; vis[i]=1; for(int j=i*i; j<=n; j+=i) vis[j]=1; int j=i*i; for(int k=j; k<=n; k+=j) { ans[k]=1; } } for(int i=m; i<=n; ++i) if(!ans[i]) cout<<i<<" "; cout<<endl; } return 0;}