Package g1301_1400.s1356_sort_integers_by_the_number_of_1_bits

Class Solution

java.lang.Object
g1301_1400.s1356_sort_integers_by_the_number_of_1_bits.Solution
public class Solution extends java.lang.Object
1356 - Sort Integers by The Number of 1 Bits.

Easy

You are given an integer array arr. Sort the integers in the array in ascending order by the number of 1’s in their binary representation and in case of two or more integers have the same number of 1’s you have to sort them in ascending order.

Return the array after sorting it.

Example 1:

Input: arr = [0,1,2,3,4,5,6,7,8]

Output: [0,1,2,4,8,3,5,6,7] Explantion: [0] is the only integer with 0 bits.

[1,2,4,8] all have 1 bit.

[3,5,6] have 2 bits.

[7] has 3 bits.

The sorted array by bits is [0,1,2,4,8,3,5,6,7]

Example 2:

Input: arr = [1024,512,256,128,64,32,16,8,4,2,1]

Output: [1,2,4,8,16,32,64,128,256,512,1024] Explantion: All integers have 1 bit in the binary representation, you should just sort them in ascending order.

Constraints:

  • 1 <= arr.length <= 500
  • 0 <= arr[i] <= 104

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int[]
    sortByBits(int[] arr)
     

    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

    • sortByBits

      public int[] sortByBits(int[] arr)