Скачать или смотреть 219. Contains Duplicate - 2 || Explained || Tamil || LeetCode || Java

🎉 Welcome back to our Channel ! In today's tutorial, we'll delve into solving the problem of detecting nearby duplicate elements in an array using Java. The challenge is to efficiently determine if there are any repeated numbers within a given distance 'k' in the array.

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🔍 Problem Statement:
Given an array of integers 'nums' and an integer 'k', our task is to determine whether there are any duplicate elements within a distance 'k' from each other.

💡 Solution Approach:
I utilize a HashMap in Java to efficiently check for nearby duplicates. The HashMap stores the elements along with their indices as key-value pairs. As I iterate through the array, I check if the current element is already present in the HashMap. If it is, and the difference between the current index and the stored index is less than or equal to 'k', we've found a nearby duplicate, and the function returns true. Otherwise, I update the index of the current element in the HashMap. If the loop completes without finding any nearby duplicates, the function returns false.

🎥 Watch the full video to learn:

Understanding the HashMap data structure.
Iterative approach to check for nearby duplicates within a distance 'k'.
Time and space complexity analysis.

🚨 Timestamps:

0:00 Introduction
00:51 Problem Explanation
02:40 Algorithm Walkthrough
03:45 Time and Space Analysis
04:00 Coding the Solution
07:49 Conclusion

🔗 Helpful Resources:
Link to LeetCode Problem (https://leetcode.com/problems/contain...)

🚩 Challenge: Try implementing the solution with Pen & Paper on your own before watching the video!

If you found this video helpful or have any questions, feel free to leave a comment below. Don't forget to like, share, and SUBSCRIBE for more coding solutions. Happy coding! 🚀✨

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