Integer to Roman LeetCode 12 | Intuitive Explanation + Code

Published: 15 November 2024
on channel: CodingNinja

4,370

Integer to Roman LeetCode 12 with Python, JavaScript, Java and C++.

Integer to Roman is a popular problem on LeetCode, specifically problem LeetCode 12, that challenges you to convert an integer into its Roman numeral representation. Roman numerals are represented using combinations of letters like 'I', 'V', 'X', and so on, following specific rules. For instance, the number 3 is 'III', and 4 is 'IV' using the subtractive notation.

In this problem, you are given an integer within the range 1 to 3999 and need to return its Roman numeral equivalent. To solve Integer to Roman, you can use a mapping of integer values to their Roman numeral counterparts and iterate from the largest value downward.

Efficient solutions involve subtracting the largest possible Roman numeral value from the integer until it reaches zero. This approach ensures that you handle cases like 900 ('CM') and 40 ('XL') correctly. LeetCode 12 is a great exercise to practice greedy algorithms and mapping logic.

By solving Integer to Roman, you strengthen your understanding of numeric systems and problem-solving strategies. It's a must-try problem for any aspiring coder!

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■ Timeline
0:04 Explain key points
7:18 Coding
8:54 Time Complexity and Space Complexity
9:44 Coding Exercise
13:10 Time Complexity and Space Complexity for Coding Exercise

■ Blind 75 LeetCode questions
   • Blind 75 LeetCode Questions

■ Twitter
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■ Problem Link
https://leetcode.com/problems/integer...

■ Codes in the video
Python, JavaScript, Java and C++ are available from here.
https://leetcode.com/problems/integer...

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