Leetcode 13. Roman to Integer Solution

sateesh.py

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Nov 12, 2023

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class Solution:
    def romanToInt(self, s: str) -> int:
        value = {
            'I':1,
            'V':5,      
            'X':10,
            'L':50,
            'C':100,
            'D':500,
            'M':1000
        }
        rsum = 0
        for i in range(len(s)):
            if i+1 < len(s) and value[s[i]]<value[s[i+1]]:
                rsum -= value[s[i]]
            else:
                rsum +=value[s[i]]
        return rsum