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我也不知道为什么,凑了个程序就AC了,对精度的问题我也没有很好理解In Reply To:那你就帮忙指出来吧!我也想学习一下 Posted by:zerocool_08 at 2005-10-14 10:05:02 #include "stdio.h"
int main(void)
{
double sum,ave,a[1010],s1,s2;
int n,i,temp;
while(scanf("%d",&n)==1&&n)
{
sum=0;
for(i=0;i<n;i++)
scanf("%lf",&a[i]),sum+=a[i];
ave=sum/n;
temp=(int)(ave*100+0.5);
ave=temp/100.0;
for(i=0,s1=0,s2=0;i<n;i++)
{
if(a[i]>ave)
s1+=a[i]-ave;
else
s2+=ave-a[i];
}
sum=s1<s2? s1:s2;
printf("$%.2lf\n",sum);
}
}
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