🚀 Welcome to Part 91 of Code & Debug’s DSA in Python Course!
In this lecture, we solve the Next Greater Element problem from GeeksforGeeks, a classic application of Monotonic Stacks. We efficiently find the next larger element for every element in the array in O(n) time.
📚 What you’ll learn in this video:
✅ Understanding the problem and constraints
✅ Brute force vs Optimized Monotonic Stack approach
✅ Traversing from right to left & using stack for tracking
✅ Step-by-step Python implementation
✅ Time and space complexity analysis
💡 Why is this important?
This problem is widely asked in interviews and lays the foundation for solving advanced problems like Stock Span, Daily Temperatures, Sliding Window Maximum, etc. Mastering Monotonic Stack is crucial for array and interval problems.
👉 Practice the problem on GeeksforGeeks:
🔗 https://www.geeksforgeeks.org/problem...
👉 Refer to the article for better understanding:
https://codeanddebug.in/blog/next-lar...
👉 📄 Access the full YouTube DSA Playlist Sheet (All Questions in Order):
🔗 https://docs.google.com/spreadsheets/...
👉 Enroll in the free DSA Python course here:
https://codeanddebug.in/course/master...
👉 Enroll for Self-Paced Advance DSA course here:
https://codeanddebug.in/course/zero-t...
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