Скачать или смотреть 1394. Find Lucky Integer in an Array - LeetCode [ Easy ] POTD - 5 June 2025

📄All the notes & code are uploaded :
https://leetcode.com/problems/find-lu...
❓Question Link :
https://leetcode.com/problems/find-lu...

🧠 Question Description
In this problem, we are given an integer array, and we need to find the "lucky integer"—an integer whose frequency in the array is equal to its value. Among all such lucky integers, we return the maximum one. If none exist, we return -1. This question is simple yet tests your understanding of frequency counting, map usage, and array traversal.
In the video, we’ve explained 3 optimized methods including frequency maps and counting arrays with a clean and beginner-friendly dry run. Perfect for those preparing for coding interviews, Leetcode contests, and daily DSA practice. Easy to follow, high-beat rate logic walkthrough to level up your problem-solving skills!

🏷️ Tags / Concepts Covered
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📌 Timestamps :
00:00 General Discussion
2:20 Method - 01 + Dry Run
4:39 Code - 01
6:23 Method - 02 + Code
7:25 Method - 03 [ Sorting ] + Code
11:33 End Discussion

💬 🔔 Updates / Notices
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