HDU Calling Extraterrestrial Intelligence Again

如图,下面代码

#include <iostream>
#include <cstring>

using namespace std;
const int N=10005;
int p,q,prime[N],ans[N],num=0;

int primePrint(){
    int i,j;
    memset(prime,0,sizeof(prime));
    for(i=2;i<=N;i++){
        if(prime[i])
            continue;
        for(j=i+i;j<=N;j+=i){
            prime[j]=1;
        }
        ans[num++]=i;
    }
}

int main(){
    int m,ansp,ansq;
    double a,b,Min,Max;
    primePrint();
    while(cin>>m>>a>>b){
        if(m==0&&a==0&&b==0)
            break;
            Max=0;
            Min=a/b;
            for(p=num-1;p>=0;p--){
            for(q=p;q>=0;q--){
                if(ans[p]*ans[q]>m||(double)ans[q]/ans[p]<Min)
                       continue;
                       if(ans[p]*ans[q]>Max){
                        Max=ans[p]*ans[q];
                        ansp=ans[p];
                        ansq=ans[q];
                       }
            }
    }
    cout<<ansq<<" "<<ansp<<endl;
}
return 0;
}


原文地址:https://www.cnblogs.com/zhangmingzhao/p/7256447.html