leetcode question 🔥 with easy solution #coding #programming #interview

🚀 LeetCode 219 - Contains Duplicate II | Easy JavaScript Solution Explained
In this video, we solve the LeetCode Contains Duplicate II problem step-by-step. I’ll walk you through the problem statement, explain the logic, and implement an efficient O(n) solution using a HashMap (JavaScript object) for quick lookups.
📌 Problem: Given an integer array nums and an integer k, return true if there are two distinct indices i and j in the array such that
🔥 What you’ll learn in this video:

Understanding the problem statement
Using JavaScript objects (HashMap) to store indices
Writing clean and efficient JavaScript code
Optimizing for performance
#LeetCode #ContainsDuplicateII #JavaScript #CodingInterview #Algorithms #LeetCode219 #HashMap

Видео leetcode question 🔥 with easy solution #coding #programming #interview канала developer