LeetCode 217: Contains Duplicate | C# Solution | HashSet vs Sorting Approach |

📝 In this video, we'll solve the "Contains Duplicate" problem using C#. Learn multiple approaches to find duplicates in an array!

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🎯 Problem Difficulty: Easy
⏱️ Time Complexity: O(n)
💾 Space Complexity: O(n)

📋 Chapters:
00:00 - Problem statement
00:39 - Using Sorted Array
01:50 - Using Hashmap
02:56 - C# Solution walk-through

🔍 Key Concepts Covered:

HashSet Usage
Array Sorting
Duplicate Detection
Space-Time Tradeoff
C# Implementation

💡 We'll cover:

Multiple solutions
Performance comparison
Memory optimization
Best practices
Common mistakes

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🎓 Perfect for:

C# developers
Beginners in coding
Interview preparation
Algorithm basics

⭐️ Complete C# Solution:

💻 Prerequisites:

Basic C# knowledge
HashSet understanding
Array operations

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💬 Questions? Drop them in comments!

[code-scribbler]

💻 Full Solution Code Available!
You can find the complete C# implementation for this problem on GitHub:

🔍 Got Questions?
If any part of the solution needs clarification or if you have alternative approaches, drop a comment below! I’ll be happy to discuss.

📢 Request Alert!
Want me to cover a specific LeetCode problem next? Let me know which one in the comments!
P.S. Don’t forget to check the video description for additional resources and related problems!
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