Day 59/90 |⚡🚀 🔥 Kth Smallest Prime Fraction (LC 786) 🚀 Brute Force vs Min Heap 🔥 | K-Way Merge

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🚀 Kth Smallest Prime Fraction | Brute Force vs Min Heap (Optimal Approach Explained)

In this video, we break down the Kth Smallest Prime Fraction problem step-by-step and help you truly understand the intuition behind it. If you're preparing for coding interviews or grinding LeetCode, this problem is a must-know!

We start with the Brute Force approach, where we generate all possible fractions and sort them — simple but inefficient. Then, we move to the Min Heap (Priority Queue) approach, which optimizes the process and helps you solve the problem efficiently.

💡 You’ll learn:

How to generate all possible fractions from a sorted prime array

Why brute force works but fails at scale

The intuition behind using a min heap

How to efficiently track the next smallest fraction

Time & space complexity analysis

Clean and easy-to-understand code walkthrough

🔥 This video is perfect for:

DSA beginners to advanced learners

Coding interview preparation (FAANG & product companies)

Understanding heap-based optimization patterns

📌 Problem Link:
LeetCode – Kth Smallest Prime Fraction

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CHAPTERS
00:00 - Introduction & Recap
00:40 - Day 59 - LeetCode - 786 - Question Understanding
01:50 - LeetCode - 786 - K-th Smallest Prime Fraction
- Approach 1 - Theory
08:38 - LeetCode - 786 - K-th Smallest Prime Fraction
- Approach 1 - Code
16:45 - LeetCode - 786 - K-th Smallest Prime Fraction
- Approach 2 - Theory
33:17 - LeetCode - 786 - K-th Smallest Prime Fraction
- Approach 2 - Code
53:35 - Conclusion

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Видео Day 59/90 |⚡🚀 🔥 Kth Smallest Prime Fraction (LC 786) 🚀 Brute Force vs Min Heap 🔥 | K-Way Merge канала CTO Bhaiya