LeetCode solutions

1458. Sort Integers by The Number of 1 Bits

My accepted Python solution to LeetCode problem 1458, Sort Integers by The Number of 1 Bits, running in 1ms.

Difficulty: Easy
Python
Runtime 1ms
Memory 17.6MB

By Pranay Mahendrakar
Updated 20 Aug 2026

Read the problem on LeetCode View on GitHub

The problem statement is LeetCode’s and stays on their site. What follows is my accepted solution.

Python

Accepted on LeetCode — runtime 1ms, memory 17.6MB, accepted 2025-12-30.

python

class Solution:
    def sortByBits(self, arr: List[int]) -> List[int]:
        return sorted(arr, key=lambda x: (bin(x).count('1'), x))

Source