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Re:各位大牛小牛,帮忙看下一个很诡异的问题

Posted by yjc_5252 at 2009-05-05 19:04:09 on Problem 1067
In Reply To:各位大牛小牛,帮忙看下一个很诡异的问题 Posted by:drift_ice at 2007-04-17 21:03:06
> #include <math.h>
> main()
> {
>  int ax,bx,temp;
>  int k,wantedax;
> while(scanf("%d%d",&ax,&bx)==2){
> 
>  if(ax>bx){
>   temp = bx;
>   bx = ax;
>   ax = temp;
>  }
> 
>  k = bx - ax;
>  wantedax = (floor)(k*(1.0+sqrt(5))/2.0 ); //如果换成 k*1.6180340 就不行 
>  if(ax==wantedax)printf("%d\n",0);
>    else printf("%d\n",1);
> 
>  }
> }
> 
> 为什么这样可以通过,而如果改成注释的值就是WA呢?想不明白啊

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