LeetCode 13: Roman to Integer | Clean JavaScript Solution
Автор: Crappy Coder
Загружено: 2025-06-12
Просмотров: 14
In this video, I solve LeetCode 13: Roman to Integer using a clean and efficient JavaScript solution.
The challenge is to convert a Roman numeral string like "XIV" into its integer value.
My approach builds a simple object map of Roman characters to their values, then loops through the string from left to right. If the current value is less than the next, we subtract it — otherwise, we add it.
This handles all edge cases, including subtractive notation like IV, IX, XL, and so on.
✅ Clean logic
✅ Easy to understand
✅ Time-efficient
Time Complexity: O(n)
Space Complexity: O(1)
Chapters:
0:00- Problem Overview
1:55 - Explanation
6:10 - Code Walkthrough in JavaScript
8:45 - Time & Space Complexity
💬 Let me know in the comments if you want the reverse problem (Integer to Roman) next!
#leetcode13 #romantointeger #javascript #leetcodejavascript #codinginterview #romannumerals #algorithmpractice #interviewprep
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