Number Complement (Leetcode 476)

Published: 04 May 2020
on channel: Coding Interviews

476. Number Complement
Easy

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github code: https://github.com/pravhub/Coding-Int...

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

Example 1:

Input: 5
Output: 2
Explanation: The binary representation of 5 is 101 (no leading zero bits), and its complement is 010. So you need to output 2.

Example 2:

Input: 1
Output: 0
Explanation: The binary representation of 1 is 1 (no leading zero bits), and its complement is 0. So you need to output 0.

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