Most Visited place Problem - part 2 | Salesforce question with coding | #java #codinginterview #dsa

"💡 Salesforce Online Assessment - Optimized O(N) Solution! 💡

In this video (Part 2), I dive deeper into the Most Visited Marker problem and show you how to optimize the naive O(N²) approach to an efficient O(N) solution using the difference array + prefix sum technique. This method significantly improves performance and is crucial for solving large-scale problems in coding interviews and competitive programming.

This video is from DSA nerchuko series

🔹 What You’ll Learn:
✅ Understanding the naive O(N²) approach and its limitations
✅ How to optimize to O(N) using range updates & prefix sum
✅ Step-by-step LeetCode submission walkthrough
✅ Salesforce assessment & real-world coding interview tips

Problem Statement Recap:
Pat is running sprints on a numbered trail, and we need to determine which marker is visited the most times. If multiple markers have the same count, return the smallest numbered marker.

🟢 Example:
Input:

n = 5 (Number of markers)
sprints = [2, 4, 1, 3]
Optimized Output:

2 (Most visited marker using O(N) approach)
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Видео Most Visited place Problem - part 2 | Salesforce question with coding | #java #codinginterview #dsa канала DSA in Telugu