24 lines
446 B
C++
24 lines
446 B
C++
#include<stdio.h>
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#include<algorithm>
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using namespace std;
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bool cmp(int x,int y)
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{ return x>y;
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}
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int main()
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{ int t,n,i,sum;
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int a[20005];
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scanf("%d",&t);
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while(t--)
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{ scanf("%d",&n);sum=0;
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for(i=1;i<=n;i++)
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{ scanf("%d",&a[i]);
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}
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sort(a+1,a+n+1,cmp);
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for(i=3;i<=n;i+=3)
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{ sum+=a[i];
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}
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printf("%d\n",sum);
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}
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return 0;
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}
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