In this video, we solve Permutation in String (LeetCode 567) using the powerful Sliding Window Pattern with HashMap optimization.
If you struggle with:
Understanding variable-size sliding window
When to use frequency array vs HashMap
How to detect anagrams in a string
Interview questions on string matching
Then this video is for you! 🚀
We will cover:
✅ Brute Force approach
✅ Optimized Sliding Window approach
✅ Frequency array logic
✅ Time & Space Complexity
✅ Interview tips
This pattern is extremely important for coding interviews at top MNCs like Amazon, Microsoft, Google.
📌 Pattern Used: Fixed Size Sliding Window + Frequency Counter
Keep practicing DSA daily and sharpen your problem-solving skills 💪
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