什么题这是

希望考试的时候也能出这种题

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b,c,d;
    scanf("%d",&a);
    scanf("%d%d",&b,&c);
    d=ceil(((double)(a)/(double)(b)))*c;
    scanf("%d%d",&b,&c);
    d=min(d,(int)(ceil(((double)(a)/(double)(b)))*c));
    scanf("%d%d",&b,&c);
    d=min(d,(int)(ceil(((double)(a)/(double)(b)))*c));
    printf("%d",d);
}