LeetCode 217 - Contains Duplicate 🔥

In this video, we solve LeetCode Problem 217 — Contains Duplicate using a simple HashSet approach.

We will understand:
✅ Problem Statement
✅ Duplicate Detection Logic
✅ Step-by-Step Dry Run
✅ HashSet Approach
✅ Optimal C++ Solution
✅ Time & Space Complexity
✅ Beginner Friendly Explanation

This is one of the most important beginner-friendly array and hashing problems in DSA.

💻 Language Used:

C++

🧠 Problem Link:
https://leetcode.com/problems/contains-duplicate/

📌 Topics Covered:

Arrays
HashSet
Unordered Set
Hashing
DSA for Beginners

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#leetcode #cplusplus #dsa #arrays #hashset #coding #programming #leetcodeeasy

Видео LeetCode 217 - Contains Duplicate 🔥 канала Jal Patel