Path Sum (LeetCode 112) | Full solution with visuals and graphics | Study Algorithms

Опубликовано: 24 Июль 2026
на канале: Nikhil Lohia
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There can be so many paths in a binary tree. This video tells you how to smartly navigate the binary tree using a level order traversal technique so that you can easily determine if there is a path that has a particular sum.

Actual problem on LeetCode: https://leetcode.com/problems/path-sum/

Chapters:
00:00 - Intro
01:01 - Problem Statement and Description
02:42 - Finding all the possible paths (Brute Force)
04:44 - Using level order traversal smartly
09:44 - Dry-run of Code
13:54 - Final Thoughts

📚 Links to topics I talk about in the video:
Level Order Traversal:    • Level order traversal of Binary Tree | Ste...  
Recursion Algorithmic Paradigm:    • Recursion paradigms with real life example...  
Tree Data Structure:    • Understanding Tree Data Structure | Defini...  
Playlist on Trees:    • Trees  

📘 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:
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