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Re:因为x的坐标有可能为0,如果x=0的时候你要将这个点加入的话你会发现出现了死循环In Reply To:因为x的坐标有可能为0,如果x=0的时候你要将这个点加入的话你会发现出现了死循环 Posted by:Sempr at 2007-01-01 14:47:26 >
> while (idx<MAXN){
> arr[idx]+=diff;
> idx += lowBit(idx); // 如果idx=0，那么这个地方idx将永远是0
> }
哈哈，对对，非常感谢Sempr师兄的提示。
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