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为什么是 6*v 而不是 4*v ？

Posted by htzhuang at 2006-10-27 12:12:28 on Problem 2405
In Reply To:Re:为什么我的程式老是wrong answer？想不明白啊 Posted by:pluton at 2006-04-09 22:11:15 
> #include<stdio.h>
> #include<math.h>
> main()
> {
>  double D,d,v;
>  while(scanf("%lf%lf",&D,&v)&&(D||v))
>  {
>  d=pow((D*D*D-(6*v/3.1415926535)),1.0000000/3);     //不是4*v？
>  printf("%.3lf\n",d);
>  }
> }
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