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Leetcode 13 Roman to Integer.py
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Leetcode 13 Roman to Integer.py
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class Solution:
def romanToInt(self, s: str) -> int:
runsum = 0
for i in range(len(s)):
if s[i] == 'I':
if i+1<len(s):
if s[i+1] == 'X' or s[i+1] == 'V':
runsum-=1
else:
runsum+=1
else:
runsum+=1
if s[i] == 'V':
runsum+=5
if s[i] == 'X':
if i+1<len(s):
if s[i+1] == 'L' or s[i+1] == 'C':
runsum -= 10
else:
runsum += 10
else:
runsum+=10
if s[i] == 'L':
runsum += 50
if s[i] == 'C':
if i+1<len(s):
if s[i+1] == 'D' or s[i+1] == 'M':
runsum -= 100
else:
runsum += 100
else:
runsum += 100
if s[i] == 'D':
runsum += 500
if s[i] == 'M':
runsum += 1000
return runsum