#include<stdio.h>
#include<iostream>
#include<string.h>
#include<algorithm>
using namespace std;
struct In{
int t;
int m;
};
In num[100010];
int cmp(In a,In b){
return a.t*1.0/a.m<b.t*1.0/b.m;
}
int main(){
int n,i,j;
long long k,s;
while(~scanf("%d",&n)){
memset(num,0,sizeof(num));
for(i=0;i<n;i++){
scanf("%d",&num[i].t);
}
for(i=0;i<n;i++){
scanf("%d",&num[i].m);
}
sort(num,num+n,cmp);
for(k=s=i=0;i<n;i++){
k+=num[i].t;
s+=k*num[i].m;
}
printf("%I64d\n",s);
}
return 0;
}
hdu 4882 ZCC Loves Codefires
最新推荐文章于 2018-02-09 19:08:59 发布
