张青天
2019-07-22
x = 10
x & (x - 1) = 10 & 01 = 0?
3
1
丝雨
2019-05-12
我觉得x=x&(x-1)和x=x-1或者x-=1效果是一样的
1
丝雨
2019-05-12
刚发现了和x=x-1是不一样的😂
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