HackerRank - Print in Reverse | Full solution with visuals and examples | Study Algorithms

Опубликовано: 11 Июнь 2021
на канале: Nikhil Lohia

4,351

119

A very popular and famous interview question. In this problem you are given a single Linked List which needs to be printed in a reverse order. You can have several ways to approach this problem. One way could be to create a stack of all the elements and pop them one at a time. It can also be solved using recursion. This video shows you animations which will help you to understand the concept behind it. Along with it, we also write the code.

Chapters:
00:00 - Intro
01:02 - Problem Statement and Description
01:53 - Method 1: Using stacks
03:54 - Dry run using stacks
05:48 - Method 2: Using recursion
07:24 - Dry run using recursion
10:34 - Final Thoughts

Actual problem on HackerRank: https://www.hackerrank.com/challenges...

📚 Links to topics I talk about in the video:
Stack Data Structure:    • Stack Data Structure explained with animat...
Linked List:    • Linked List Data Structure explained with ...
Recursion algorithm paradigm:    • Recursion paradigms with real life example...
Reverse a Linked List:    • HackerRank - Reverse Linked List | Full so...

📘 A text based explanation is available at:

Code on Github: https://github.com/nikoo28/java-solut...
Test-cases on Github: https://github.com/nikoo28/java-solut...

📖 Reference Books:
Starting Learn to Code: https://amzn.to/36pU0JO
Favorite book to understand algorithms: https://amzn.to/39w3YLS
Favorite book for data structures: https://amzn.to/3oAVBTk
Get started for interview preparation: https://amzn.to/39ysbkJ

🔗 To see more videos like this, you can show your support on: https://www.buymeacoffee.com/studyalg...

🎥 My Recording Gear:
Recording Light: https://amzn.to/3pAqh8O
Microphone: https://amzn.to/2MCX7qU
Recording Camera: https://amzn.to/3alg9Ky
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