题解 | #买铅笔#
买铅笔
https://ac.nowcoder.com/acm/problem/16437
注意long long
```#include<stdio.h>
int main ()
{
int n=0;
int a,b;
int kk[6]={0};
int i,j,k;
long long min=100000000000;
scanf("%d",&n);
for(i=0;i<3;i++)
{
scanf("%d %d",&a,&b);
if(n%a==0)
{
kk[i]=n/a*b;
}
else
{
kk[i]=(n/a+1)*b;
}
if(kk[i]<min)
min=kk[i];
}
printf("%lld\n",min);
return 0;
}
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