LeetCode 2337 | Move Pieces to Obtain a String | Greedy + Two Pointers Explained скачать в хорошем качестве

LeetCode 2337 | Move Pieces to Obtain a String | Greedy + Two Pointers Explained

In this video, we solve LeetCode 2337: Move Pieces to Obtain a String, a tricky greedy + two pointers problem that tests your understanding of character movement constraints and string simulation. You're given two strings, start and target, made up of 'L', 'R', and '_'. You can only move 'L' to the left and 'R' to the right over underscores. The goal is to determine if you can transform start into target under the allowed movement rules. 💡 Key Concepts Covered: Greedy character comparison using two pointers Movement constraints: 'L' moves left, 'R' moves right Ignoring '_' and comparing positions of 'L' and 'R' Step-by-step walkthrough of pointer logic and edge cases Optimal and clean implementation in linear time 📌 What you'll learn: How to approach movement-constrained transformation problems Building intuition for valid vs. invalid transformations Translating rules into efficient pointer-based logic Common pitfalls in comparing character orders This is a great example of a simulation + greedy hybrid problem that can help you build confidence for tougher interview rounds at top tech companies. 🔗 Problem Link: https://leetcode.com/problems/move-pi... 👉 Found this helpful? Please like, comment, and subscribe for more high-quality LeetCode explanations. 🔔 Hit the notification bell to never miss a new video! #Leetcode2337 #Greedy #TwoPointers #StringTransformation #MovePiecesToObtainAString #LeetCodeExplained #CodingInterview #SDEPrep #DSA #FAANGPrep