![[Coding] Contains Duplicate (HashSet O(1) Lookup) — Java DSA Prep](https://i.ytimg.com/vi/NuMHkgQQkaI/mqdefault.jpg)
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Last Updated: October 15, 2026
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Video contents: 00:00 - Read and understand the question 00:50 - Explain the brute force approach 02:21 - Explain the O(n) ... Super helpful resources: nikoo28.github.io/all-my-links/ It is very important to learn about the utility functions and data ... The Best Place To Learn Anything Coding Related - bit.ly/3MFZLIZ Preparing For Your Coding Interviews? Use These ... neetcode.io/ - A better way to prepare for Coding Interviews Twitter: twitter.com/neetcode1 Discord: ... Use an Earphone/ Headphone for better audio * Time complexity: O(n). We do a search() and insert() for n times and each ... CATEGORY: Coding Interview TOPIC: Master Data Structures & Algorithms for FREE at AlgoMap.io/ Code solutions in Python, This video has the Problem Statement, Solution Walk-through and Code for the Leetcode Question 217.
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