LESSON 391 OF 667 · DIVIDE AND CONQUER

Merge Sort

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 a vector 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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