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Re:哪位牛人帮忙看看呀?怎么老是WA呀?

Posted by liaoqiaozhi at 2010-08-05 14:23:54 on Problem 1700
In Reply To:哪位牛人帮忙看看呀?怎么老是WA呀? Posted by:liaoqiaozhi at 2010-08-05 14:23:38
#include<stdio.h>
#include<stdlib.h>
int cmp(const void *a, const void *b)
{
	return *(int*)a-*(int*)b;
}
int main()
{
	int n,i,j,t,time,a[1001];
	scanf("%d",&t);
	while(t--)
	{
		scanf("%d",&n);time=0;j=0;
		for(i=0;i<n;i++)scanf("%d",&a[i]);
		qsort(a,n,sizeof(a[0]),cmp);	
		while((n-j)>=4)
		{
			if(a[1]*2<=a[n-j-2]+a[0])
			time+=2*a[1]+a[0]+a[n-j-1];
			else time+=a[n-j]+a[n-j-2]+2*a[0];
			j+=2;
		}
		if(n-j==3)time+=a[0]+a[2]+a[1];
		else if(n-j==2)time+=a[1];
		else if(n-j==1)time+=a[0];
		printf("%d\n",time);
	}
	return 0;
}



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