Longest Common Substring Sliding Window. Finding the longest substring without repeating characters is a clas

Finding the longest substring without repeating characters is a classic problem in computer science and often asked in technical This problem is a textbook example of how to use sliding window algorithms efficiently. This pattern is evident in problems like “Longest Substring Auxiliary Space: O (1) Naive Recursive Method Below is a recursive version of the above solution, we write a recursive method to This is a common interview question that tests your understanding of strings, hashmaps, and sliding window techniques. The Longest Substring Without Repeating Characters problem involves searching through a given string and identifying the longest sequence of Master the sliding window technique in Python to find the longest substring without repeating characters. Example 1: Explanation: The answer is "abc", with the length of 3. Chapters:00:00 - Intro00:41 - Problem Statement02:30 - How to approach?07:46 - Dynamic Prog 🧠 Longest Substring with Exactly K Unique Characters | Sliding Window Pattern for FAANG Interviews! Pen And Paper 297 subscribers Subscribe One of the most popular among them is: “Given a string, find the length of the longest substring without repeating characters. This pattern is evident in problems like “Longest Substring Given two strings, find the longest common substring between them. The key insight is to avoid redundant computation by keeping track of useful When we encounter a duplicate, we don't need to start over completely - we just need to shrink our window from the left until the duplicate is removed. It’s a must-practice problem that shows up in coding interviews This solution uses a variable-length sliding window to consider all substrings without repeating characters, and returns the length of the longest one at the end. Expand the window by moving the right pointer, and shrink it from the left when In this blog post, we have learned how to find the length of the longest substring without repeating characters in a given string using To find the length of the longest substring with distinct characters starting from an index, we create a new visited array of size = Auxiliary Space: O (1) Naive Recursive Method Below is a recursive version of the above solution, we write a recursive method to The solution implements a sliding window approach using two pointers to efficiently find the longest substring without repeating characters. This is a textbook example of how sliding window + set can be combined to solve substring problems efficiently. Example 2: Learn how to solve the "Longest Substring Without Repeating Characters" problem using the sliding window technique! This tutorial breaks down the algorithm step-by-step with visual Use two pointers (sliding window) to find the longest substring without repeating characters. The substring is a continuous subpart of the string and we need to return the All diagrams presented herein are original creations, meticulously designed to enhance comprehension and recall. Given a string s, find the length of the longest substring without repeating characters. ” It’s a staple question for companies like . Think of it like a sliding window that In this approach, we are going to apply sliding window technique, using two pointers left and right, take the length of longest substring length found so far, and when a character is repeated, Learn how to efficiently find the longest substring with unique characters using sliding window and hashmap in Python and JavaScript. Perfect for coding interviews! Given a string S, write a program to find the length of longest substring without repeating characters. 8K subscribers Subscribe Sync to video time Description LeetCode 3: Longest Substring Without Repeating Characters | C# Solution | Sliding Window 0Likes 12Views Jun 112025 Sliding window is one of the most powerful and common techniques used to solve substring and subarray Many Sliding Window problems involve expanding the window until a certain condition is met, then contracting it from the start. Data Structures Used: Approach and Intuition The problem of finding the longest substring without repeating characters can be approached efficiently 🔥 A must-know technique for FAANG interviews! Master the Sliding Window approach to solve substring problems like a pro. Given a string, we need to determine the length of Just when I thought I had a great handle on solving some of the challenging strings and array problems using the sliding window Sliding Window - Longest Substring without Repeating Characters - Leetcode 3 - tamil Algo Tamizha 24. Crafting these aids required considerable effort, and I Learn how to find the longest substring without repeating characters in Java using the sliding window technique and hashmaps for optimal efficiency. // Function to find the length of the longest substring without repeating characters using the sliding window technique var lengthOfLongestSubstring = function(s) { Complexity This solution efficiently finds the length of the longest substring without repeating characters by using a sliding window approach and an unordered map to track Many Sliding Window problems involve expanding the window until a certain condition is met, then contracting it from the start.

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