View Code of Problem 61

#include<stdio.h>	
#include<stdlib.h>
int cmp(const void *a,const void *b)
{
	return *(int *)a-*(int *)b;
}
int main()
{
	int t;
	scanf("%d",&t);
	while(t--)
	{
		int n;
		scanf("%d",&n);
		int a[n],i;
		for(i=0;i<n;i++)
			scanf("%d",&a[i]);
		qsort(a,n,sizeof(int),cmp);
		int max=a[0]*n;
		for(i=1;i<n;i++)
		{
			if(max<a[i]*(n-i))
				max=a[i]*(n-i);
		}
		printf("%d\n",max);
	}
} 

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