Merge Sort
Detailed guide and Python implementation for the 'Merge Sort' problem.
Problem Statement
Write a function merge_sort(arr) that sorts a list of integers arr in ascending order using the Merge Sort algorithm and returns the sorted list.
- •0 <= len(arr) <= 10^4
- •-10^5 <= arr[i] <= 10^5
Examples
arr = [38, 27, 43, 3, 9, 82, 10]
[3, 9, 10, 27, 38, 43, 82]
The list is divided in half recursively, sorted, and then merged back together.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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