LeetCode 217: Contains Duplicate – Brute Force vs. Sorting vs. HashSet (Step-by-Step Java Solution)

In this video, we solve LeetCode 217: Contains Duplicate using three different approaches – Brute Force, Sorting, and HashSet. 🚀 We go step by step through each solution in Java, analyzing their time and space complexity. By the end, you'll understand which approach is the most efficient for coding interviews! 💡

⏳ Timestamps:
00:00 – Introduction and Problem Explanation
01:01 – Brute Force Approach (O(n²) time complexity)
04:15 – Sorting Approach (O(n log n) time complexity)
06:34 – HashSet Approach (O(n) time complexity)

🔹 📢 Connect with me:
🔗 LinkedIn: https://www.linkedin.com/in/romanna-bidnyk/
🔗 GitHub: https://github.com/RomannaBidnyk

✨ If this helped you, please LIKE & SUBSCRIBE! 🚀

Видео LeetCode 217: Contains Duplicate – Brute Force vs. Sorting vs. HashSet (Step-by-Step Java Solution) канала Romanna Bidnyk