Longest Consecutive Sequence (LeetCode 128) | Full solution quick and easy explanation | Interviews

As direct this problem looks, the trickier it is to solve in O(n) time complexity. In this video learn how to build a better solution on top of a brute force solution and how to determine which data structure will be a good choice. This will speed up how you find the longest consecutive sequence. All along with beautiful animations and visuals.

Actual problem on LeetCode: https://leetcode.com/problems/longest...

Chapters:
00:00 - Intro
00:59 - Problem Statement and Description
03:17 - Brute Force Method
05:54 - Sorting to the rescue
08:21 - Optimizing for O(n)
14:02 - Dry-run of Code
17:21 - Final Thoughts

📚 Links to topics I talk about in the video:
Brute Force Paradigm:    • Brute Force algorithms with real life...  
Quick Sort:    • Quick Sort super easy explanation wit...  
HashMap Data Structure:    • What is a HashMap? | Data Structures ...  
What is Time Complexity:    • Big O Notation Simplified to the MAX ...  

📘 A text based explanation is available at: https://studyalgorithms.com

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
Tablet to sketch and draw: https://amzn.to/3pM6Bi4
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Laptop to edit videos: https://amzn.to/2LYpMqn


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