LeetCode 1356: Sort by Number of 1 Bits 🧮

LeetCode Problem 1356 – Sort Integers by The Number of 1 Bits
Difficulty: Easy

In this video, we solve LeetCode 1356 where the task is to sort an array of integers based on
the number of 1s in their binary representation.

Sorting Rules:
1. Numbers with fewer set bits come first
2. If two numbers have the same number of set bits, sort them in ascending order

Approach:
- Count set bits for each number
- Use custom sorting based on bit count and value
- Apply efficient bit manipulation logic

Concepts Covered:
- Bit manipulation
- Counting set bits
- Custom comparator
- Sorting techniques

Time Complexity: O(n log n)
Space Complexity: O(n)

This problem helps in:
• Understanding binary representation
• Practicing bit manipulation
• Strengthening sorting concepts
• Interview and DSA preparation

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