LeetCode 121: Best Time to Buy and Sell Stock | Easy Greedy Solution in C++

Welcome back! In today’s video, I’m going to walk you through another important and beginner-friendly problem from LeetCode: 121. Best Time to Buy and Sell Stock using an efficient Greedy approach.

This video is perfect for beginners who are starting their journey in Data Structures and Algorithms (DSA). I explain the problem step by step in a very simple way, so you can clearly understand how to maximize profit efficiently and improve your problem-solving skills.

We’ll go through the logic of tracking the minimum buying price, calculating maximum profit, and solving the problem in optimal time complexity. Along with coding, I also focus on building your intuition so you can solve similar interview questions confidently.

🔗 Useful Links:

💻 Practice the problem on LeetCode:
https://leetcode.com/problems/best-time-to-buy-and-sell-stock/

💻 Source Code (GitHub):
https://github.com/ParthKaretiya

🌐 My Portfolio:
https://parthkaretiya-portfolio.vercel.app/

🌐 Connect with Me:

💼 LinkedIn:
https://www.linkedin.com/in/parth-karetiya-640a00371/

🐦 X (Twitter):
https://x.com/ParthKaretiya01

💻 GitHub:
https://github.com/ParthKaretiya

🧠 LeetCode Profile:
https://leetcode.com/u/fuvaLE5xdK/

📌 What You’ll Learn in This Video:

🧠 Understanding the Buy and Sell Stock problem

📈 Efficient Greedy approach explanation

🔁 Step-by-step dry run of the algorithm

💻 C++ implementation explained clearly

⏱ Time and Space Complexity analysis

🎯 Tips to solve similar Array and Greedy problems efficiently

Видео LeetCode 121: Best Time to Buy and Sell Stock | Easy Greedy Solution in C++ канала Parth Karetiya