![Contains Duplicates [LeetCode 217] | Sorting | Hash Set | Approach and intuition](https://i.ytimg.com/vi/KJV1GoYDVm8/mqdefault.jpg)
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Last Updated: September 27, 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 ... neetcode.io/ - A better way to prepare for Coding Interviews Twitter: twitter.com/neetcode1 Discord: ... 217 Contains Duplicate Leetcode BreuteForce Video contents: 00:00 - Read and understand the question 00:50 - Explain the brute force approach 02:21 - Explain the O(n) ... This problem is considered to be Easy difficulty on Please Support and Share CodeTree and help us reach out more people ! The Channel will be updated with videos on ... Problem: Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element ... The Best Place To Learn Anything Coding Related - bit.ly/3MFZLIZ Preparing For Your Coding Interviews? Use These ...
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