![Contains Duplicate - Python Solution [Leetcode 217]](https://i.ytimg.com/vi/M-ih-AbRuF8/mqdefault.jpg)
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Last Updated: September 22, 2026
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Master Data Structures & Algorithms for FREE at AlgoMap.io/ Code solutions in Most teachers introduce solutions as fully-formed recipes. But in doing so, they totally miss how solutions are DISCOVERED. ... some lead code problems right so today's problem is essentially problem number Easy and Beginner Friendly Explanation with 3 approaches and Time and Space Complexity Analysis! ⚡ Related Resources ... Super helpful resources: nikoo28.github.io/all-my-links/ It is very important to learn about the utility functions and data ... This is my first video recording my process for solving Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct. New spin-off series for Data Structures and Algorithm. Let's look at [
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