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roman-to-integer.py
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40 lines (34 loc) · 942 Bytes
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#https://leetcode.com/problems/roman-to-integer/
class Solution(object):
def romanToInt(self, s):
counter = 0
special = {
'IV':4,
'IX':9,
'XL':40,
'XC':90,
'CD':400,
'CM':900,
}
normal = {
'I':1,
'V':5,
'X':10,
'L':50,
'C':100,
'D':500,
'M':1000
}
for char, num in special.items():
if char in s:
counter+=num
s = s.replace(char, '')
if s=='':
return counter
for char, num in normal.items():
if char in s:
counter+=num*s.count(char)
s = s.replace(char, '')
if s=='':
return counter
return counter