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数据都过了,但是GCC,G++不能过的注意了,把double改为float就能过,或者换成c++也就能过了

Posted by 129074016 at 2014-05-15 17:59:32 on Problem 1862
把double改为float就能过,或者换成c++也就能过了
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int cmp ( const void *a , const void *b )
{
    return *(float *)b - *(float *)a;
}

int main()
{
	float s,a[1000];
	int n,i;
	while(scanf("%d",&n)!=EOF)
	{
		for(i=0;i<n;i++)
		{
			scanf("%f",&a[i]);
		}
		qsort(a,n,sizeof(a[0]),cmp);
		s=a[0];
		for(i=1;i<n;i++)
		{
			s=2.0*sqrt(s*a[i]);
		}
		printf("%.3f\n",s);
	}
}

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