Roman to Integer C#

Federico Vellani answered on September 24, 2022 Popularity 6/10 Helpfulness 4/10

answer Roman to Integer C#

Roman to Integer C#

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public class Solution {
    public int RomanToInt(string s) {
        var dictionary = new Dictionary<char, int>();
        dictionary.Add('I', 1);
        dictionary.Add('V', 5);
        dictionary.Add('X', 10);
        dictionary.Add('L', 50);
        dictionary.Add('C', 100);
        dictionary.Add('D', 500);
        dictionary.Add('M', 1000);
        
        int solution = 0;
        
        /*
            They practically solved it, all we had to do was to read the question:
                I can be placed before V (5) and X (10) to make 4 and 9. 
                X can be placed before L (50) and C (100) to make 40 and 90. 
                C can be placed before D (500) and M (1000) to make 400 and 900.
        */
        s = s.Replace("IV","IIII")
            .Replace("IX", "VIIII")
            .Replace("XL", "XXXX")
            .Replace("XC", "LXXXX")
            .Replace("CD", "CCCC")
            .Replace("CM", "DCCCC");
        
        foreach(char c in s){
            solution += dictionary[c];
        }
        
        return solution;
    }
}

Popularity 6/10 Helpfulness 4/10 Language csharp

Source: leetcode.com

Tags: c# integer

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Contributed on Sep 24 2022

Federico Vellani

0 Answers Avg Quality 2/10

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