Roman to Integer Explained | Python Dictionary & Subtraction Logic

Roman to Integer is a classic LeetCode problem that tests pattern recognition and subtraction logic in number systems.

In this video, we solve Roman to Integer using Python, covering:

Roman numeral symbols and their integer values
Why subtraction cases like IV, IX, XL, XC, CD, CM exist
Using a dictionary for fast lookups
Step-by-step logic to convert Roman numerals into integers
Clean and readable Python code walkthrough

This explanation is useful for:

LeetCode practice
Python beginners learning problem-solving patterns
Coding interview preparation and quick revision

Simple rules. Clear logic. Practical Python solution.

Видео Roman to Integer Explained | Python Dictionary & Subtraction Logic канала Tech Diaries