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花花酱 LeetCode 476. Number Complement

题目大意:给你一个正整数,输出和它互补的数(翻转所有的bits)。

Problem:

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation.

Note:

  1. The given integer is guaranteed to fit within the range of a 32-bit signed integer.
  2. You could assume no leading zero bit in the integer’s binary representation.

Example 1:

Example 2:

Idea:

Bit



Solution:

C++

 

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