![LeetCode - 217. Contains Duplicate || [Python] ✅ || Beginner-Friendly Logic || Fully Explained](https://i.ytimg.com/vi/ZFo1KqQo6HE/mqdefault.jpg)
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Last Updated: October 31, 2026
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neetcode.io/ - A better way to prepare for Coding Interviews Twitter: twitter.com/neetcode1 Discord: ... 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. If you found this helpful, my channel for even **MORE VIDEOS**! Super helpful resources: nikoo28.github.io/all-my-links/ It is very important to learn about the utility functions and data ... In this video, we dive deep into a widely used coding problem:
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