![[Animated] LeetCode 217 Contains Duplicate | Blind 75 | HashSet](https://i.ytimg.com/vi/TpP6NGC1Vpw/mqdefault.jpg)
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Last Updated: September 16, 2026
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Super helpful resources: nikoo28.github.io/all-my-links/ It is very important to learn about the utility functions and data ... Video contents: 00:00 - Read and understand the question 00:50 - Explain the brute force approach 02:21 - Explain the O(n) ... neetcode.io/ - A better way to prepare for Coding Interviews Twitter: twitter.com/neetcode1 Discord: ... Problem: Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element ... Welcome back to Coder Learning! In this video, we are solving This is the solution approach to This video has the Problem Statement, Solution Walk-through and Code for the
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