Package g1001_1100.s1009_complement_of_base_10_integer

Class Solution

java.lang.Object
g1001_1100.s1009_complement_of_base_10_integer.Solution
public class Solution extends java.lang.Object
1009 - Complement of Base 10 Integer.

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 n, return its complement.

Example 1:

Input: n = 5

Output: 2

Explanation: 5 is “101” in binary, with complement “010” in binary, which is 2 in base-10.

Example 2:

Input: n = 7

Output: 0

Explanation: 7 is “111” in binary, with complement “000” in binary, which is 0 in base-10.

Example 3:

Input: n = 10

Output: 5

Explanation: 10 is “1010” in binary, with complement “0101” in binary, which is 5 in base-10.

Constraints:

  • 0 <= n < 109

Note: This question is the same as 476: https://leetcode.com/problems/number-complement/

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    bitwiseComplement(int n)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • bitwiseComplement

      public int bitwiseComplement(int n)