@[Haidde](/user/1215070)
```cpp
#include<bits/stdc++.h>
int main()
{
int n,i,a[3],m[3],min=INT_MAX,b;
scanf("%d",&n);
for(i=0;i<3;i++)
scanf("%d %d",&a[i],&m[i]);
for(i=0;i<3;i++)
{
b=ceil(double(n)/double(a[i]))*m[i];//ceil为向上取整函数
if(b<min)
min=b;
}
printf("%d",min);
return 0;
}
```
by xiangzhenze611 @ 2024-02-18 18:32:01
@[xiangzhenze611](/user/1005749) 用ceil函数之后AC了，谢谢大佬
by Haidde @ 2024-02-18 18:49:04