Longest Substring Without Repeating Characters | Sliding Window Explained
In this video, I explain how to solve the Longest Substring Without Repeating Characters problem using the sliding window approach.
I walk through:
The intuition behind sliding window
How to use left and right pointers
Handling duplicates using a hashmap
Step-by-step explanation of the code
This is a fundamental pattern for coding interviews and helps build strong problem-solving intuition.
#LeetCode #SlidingWindow #CodingInterview #Python #BackendEngineering
