Join Raghavendra Dixit for an in-depth discussion in this video Merge sort, part of Introduction to Data Structures & Algorithms in Java.
- [Instructor] Now we will learn another sorting algorithm…called merge sort.…This algorithm is a recursive algorithm…and works very well for large sets of data.…The most important step in the merge sort algorithm…is the merge step.…In this step, we take two individually sorted arrays,…all right, and merge these two…such that the resulting array is also sorted.…So if the two arrays that we start with…are in ascending order, the resulting array,…which would contain all the elements of the two arrays,…should also be sorted, okay?…And how do we do that?…Let's understand with the help of an example.…
We have these two arrays…which are individually sorted, right?…Elements two and nine are in ascending order…in the left array, while elements seven, eight,…and 12 in the right array are also sorted.…And if we merge them into one single array,…so let's say we have a resulting array of size five,…which is equal to the sum of the individual lengths…of the two arrays, and the way to merge these two arrays…is that we start by comparing the first elements…
Note: This course was created by Packt Publishing. We are pleased to host this training in our library.
- Why study data structures and algorithms?
- How to calculate the time complexity
- Using Big O notation
- Using basic sorting and search algorithms
- Searching elements in unordered arrays and ordered arrays
- Implementing a linked list in Java
- Implementing stacks using arrays
- Queues using arrays
- Binary search trees
- Representing heaps using arrays
Skill Level Intermediate
1. Introduction to Algorithms
2. Analysis of Algorithms
3. Basic Sorting and Search Algorithms
4. Linked Lists
5. Stacks and Queues
7. Binary Search Trees
8. More Sorting Algorithms
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.