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# (Python Example for Citizen Data Scientist & Business Analyst)

Write a Python program to sort a list of elements using the merge sort algorithm.

Note: According to Wikipedia “Merge sort (also commonly spelled mergesort) is an O (n log n) comparison-based sorting algorithm. Most implementations produce a stable sort, which means that the implementation preserves the input order of equal elements in the sorted output.”

**Algorithm:**

Conceptually, a merge sort works as follows :

- Divide the unsorted list into n sublists, each containing 1 element (a list of 1 element is considered sorted).
- Repeatedly merge sublists to produce new sorted sublists until there is only 1 sublist remaining. This will be the sorted list.

An example of merge sort:

**Sample Solution**:

**Python Code:**

Sample Output:

Splitting [14, 46, 43, 27, 57, 41, 45, 21, 70] Splitting [14, 46, 43, 27] Splitting [14, 46] Splitting [14] Merging [14] Splitting [46] ------- Merging [14, 21, 27, 41, 43, 45, 46, 57, 70] [14, 21, 27, 41, 43, 45, 46, 57, 70]

## Write a Python program to sort a list of elements using the merge sort algorithm

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