Package g0401_0500.s0476_number_complement

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    476 - Number Complement.

    Easy

    The complement of an integer is the integer you get when you flip all the 0's to 1's and all the 1's to 0's in its binary representation.

    • For example, The integer 5 is "101" in binary and its complement is "010" which is the integer 2.

    Given an integer num, return its complement.

    Example 1:

    Input: num = 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: num = 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.

    Constraints:

    • <code>1 <= num < 2<sup>31</sup></code>

    Note: This question is the same as 1009: https://leetcode.com/problems/complement-of-base-10-integer/

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer findComplement(Integer num)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait