题解 | Old Bill

#include <iostream>
using namespace std;
int max(int a,int b)
{
    if(a<b){
        return b;
    }
    else return a;
}
int main() {
    int a,b,c,d,e,n;
    int s1,s2;
    int key,remain,Max=0;
    cin>>n;
    cin>>b>>c>>d;
    for(a=0;a<=9;a++){
        for(e=0;e<=9;e++){
            key=a*10000+b*1000+c*100+d*10+e;
            remain=key/n;
            if((key%n==0)&&remain!=0&&remain>Max){
                s1=a;
                s2=e;
                Max=max(Max,remain);
            }
        }
    }
    if(Max!=0&&s1!=0){
    cout<<s1<<" "<<s2<<" "<<Max<<endl;
    }
    else {
        cout<<"0"<<endl;
    }
    return 0;
}