35 lines
780 B
C++
35 lines
780 B
C++
#include "iostream"
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#include "stdio.h"
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#include "math.h"
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#include "vector"
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#include "queue"
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#include "memory.h"
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#include "algorithm"
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#include "string.h"
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using namespace std;
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#define N 1000005
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__int64 a1[N];
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__int64 a2[N];
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int main()
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{
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int n1,n2,i,j;
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while(scanf("%d",&n1)!=EOF&&n1>=0)
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{
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for(i=0;i<n1;i++)
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scanf("%I64d",&a1[i]);
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scanf("%d",&n2);
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for(i=0;i<n2;i++)
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scanf("%I64d",&a2[i]);
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sort(a1,a1+n1);
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sort(a2,a2+n2);
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i=0;
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__int64 sum=0;
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while(a1[i]<0&&a2[i]<0&&i<n1&&i<n2)
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sum+=a1[i]*a2[i++];
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i=n1-1,j=n2-1;
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while(a1[i]>0&&a2[j]>0&&i>=0&&j>=0)
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sum+=a1[i--]*a2[j--];
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printf("%I64d\n",sum);
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}
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}
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