[Leetcode] Sum of Two Integers
2016-10-24 03:52
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异或用来+,与用来移位。
a ^ b
(a & b) << 1
直到a和b的与移位为0,表示直接取 a ^ b的值。
可以recursion或者while loop
a ^ b
(a & b) << 1
直到a和b的与移位为0,表示直接取 a ^ b的值。
可以recursion或者while loop
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