LESSON 262 OF 349 · DIVIDE AND CONQUER

Merge Sort in Swift

Practice O(n log n)

In this video lesson we will study how the Merge Sort algorithm works, we will analyze its time and space complexities and then we will implement it:

Problem - Merge Sort:

Given an array of integers nums, sort it in ascending order using Merge Sort

Example 1:

Input: nums = [3, 1, 3, 2, 5, 4]
Output: [1, 2, 3, 3, 4, 5]

Note:

Your algorithm should run in O(n log n) time and use O(n) extra space.

STEP 1 OF 26

Guided

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