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This problem is considered to be Easy difficulty on

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Contains Duplicate Leetcode

This video has the Problem Statement,

Video contents: 00:00 - Read and understand the question 00:50 - Explain the brute force approach 02:21 - Explain the O(n) ...

Leetcode

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Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element ...

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