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LeetCode 217 | Contains Duplicate 🔁 | Easy HashSet Solution Explained | DSA Interview Prep
In this video, we solve LeetCode Problem #217 – Contains Duplicate, a classic array + hashing problem frequently asked in coding interviews. 🔹 Problem Statement 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. 🔹 What you’ll learn in this video ...
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