LeetCode #13: Roman to Integer in Java | Brute Force vs Greedy O(n) - Cleanest Parsing Trick!

Описание: Roman numerals aren’t just ancient symbols — they’re a great exercise in string parsing and greedy optimization. In this video, we dive into LeetCode #13: Roman to Integer in Java. We’ll start with a simple pattern-matching brute force approach, then refine our strategy with a reverse scan, and finally land on an elegant greedy solution that’s perfect for interviews.

Learn how this classic problem connects to real-world parsing systems and why the greedy technique isn’t just faster — it’s cleaner, more maintainable, and interview gold. Quack your way through the logic with Algo Ducky!

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Chapters:
0:00 Introduction
0:32 Brute Force Pattern Matching
1:57 Right-to-Left Scan with Max Tracker
3:12 Left-to-Right Scan with Subtraction Rule
4:23 Summary