LeetCode 121: Best Time to Buy and Sell Stock Made Easy for Complete Beginners - Python Tutorial

📈 LeetCode 121: Best Time to Buy and Sell Stock – Made Easy!

Struggling with stock problems in LeetCode? In this beginner-friendly video, we break down LeetCode 121: Best Time to Buy and Sell Stock step by step — with simple logic, live code walkthrough, and real-world explanation.

You'll learn:
✅ How to approach the problem
✅ Brute-force vs optimized O(n) solution
✅ Line-by-line code explanation
✅ Time & space complexity
✅ When to update the min price and how to calculate max profit

This is the perfect video for beginners looking to understand one of the most common interview questions clearly and confidently.

🧠 Problem Summary:
You're given an array where prices[i] is the stock price on the i-th day. Buy once, sell later, and return the maximum possible profit — or 0 if no profit is possible.

💻 Code Language: Python
📊 Difficulty Level: Easy

🔔 Subscribe for more easy coding tutorials!
👍 Like | 💬 Comment | 📢 Share with friends

#leetcode #twopointer #python #interviewprep #dsa #stockmarket #codinginterview #leetcodeeasy #buyandsellstock