Top K Frequent Elements - LeetCode 347 | Day 5 of My Coding Journey

🎯 Day 5 of My LeetCode Journey | Top K Frequent Elements Problem

In this video, I solve LeetCode Problem #347 - Top K Frequent Elements, a medium-level problem that's extremely popular in FAANG interviews! This problem tests your knowledge of hash maps and optimization techniques.

🔗 Problem Link: https://leetcode.com/problems/top-k-frequent-elements/

📌 PROBLEM DESCRIPTION:
Given an integer array nums and an integer k, return the k most frequent elements. You may return the answer in any order.

Example 1:
Input: nums = [1,1,1,2,2,3], k = 2
Output: [1,2]
Explanation: 1 appears 3 times, 2 appears 2 times

Example 2:
Input: nums = [1], k = 1
Output: [1]

Example 3:
Input: nums = [1,2,1,2,1,2,3,1,3,2], k = 2
Output: [1,2]

💡 KEY CONCEPTS COVERED:
✅ Hash Maps for Frequency Counting
✅ Min Heap / Priority Queue
✅ Bucket Sort Algorithm
✅ Time Complexity Optimization
✅ Top-K Problems Pattern

📊 COMPLEXITY:
• Solution (Sorting): O(n log n) time, O(n) space

🎓 DIFFICULTY: Medium
🏷️ TOPICS: Hash Table, Array, Sorting

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📚 MY LEETCODE JOURNEY PLAYLIST:
https://www.youtube.com/playlist?list=PLHQFKUF-DX-80aobGuOHTZP1J1SfA12dS

🤝 CONNECT WITH ME:
• GitHub: https://github.com/ashwinikemshetty
• LinkedIn: https://www.linkedin.com/in/ashwinikemshetty/

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Видео Top K Frequent Elements - LeetCode 347 | Day 5 of My Coding Journey канала Ashwini Kemshetty