常见二进制操作

• 基本操作：

a = a^0 = 0^a
0 = a^a
a = a^b^b

• 交换两个数

a = a^b
b = a^b ## (a^b)^b = a
a = a^b ## (a^b)^a = b

• 移除最后一个1

a = n&(n-1)

• 获取最后一个1

diff = (n&(n-1))^n

其中，

image.png

完全没看懂

参考资料：
https://www.cnblogs.com/aydenwang/p/9398826.html
https://www.runoob.com/python/python-operators.html
https://greyireland.gitbook.io/algorithm-pattern/shu-ju-jie-gou-pian/binary_op#jiao-huan-liang-ge-shu