格雷码推导

原創 newlaide 2020-07-03 02:00

今日看百度百科上关于位运算的内容，里面提到格雷码的一个计算公式，引文：Gray码的第n个数（从0算起）是n xor (n shr 1)。看起来有点抽象，也可能是不够聪明，一眼看不出来，就拿纸笔推导了一下。


百度百科原文链接：http://baike.baidu.com/view/379209.htm#7

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