Kenneth: Created page with "== Roman Numeral to Integer == My favorite solution I found online: https://leetcode.com/problems/roman-to-integer/solutions/264743/clean-python-beats-99-78/

 class Solution:     def romanToInt(self, s: str) -> int:         translations = {             "I": 1,             "V": 5,             "X": 10,             "L": 50,             "C": 100,             "D": 500,             "M": 1000         }         number = 0         s = s.replace("IV", "IIII").repl..."

2025-05-13T21:32:55Z

Created page with "== Roman Numeral to Integer == My favorite solution I found online: <ref>https://leetcode.com/problems/roman-to-integer/solutions/264743/clean-python-beats-99-78/</ref> <pre> class Solution: def romanToInt(self, s: str) -> int: translations = { "I": 1, "V": 5, "X": 10, "L": 50, "C": 100, "D": 500, "M": 1000 } number = 0 s = s.replace("IV", "IIII").repl..."

New page

== Roman Numeral to Integer ==

My favorite solution I found online: <ref>https://leetcode.com/problems/roman-to-integer/solutions/264743/clean-python-beats-99-78/</ref>
<pre>
class Solution:
def romanToInt(self, s: str) -> int:
translations = {
"I": 1,
"V": 5,
"X": 10,
"L": 50,
"C": 100,
"D": 500,
"M": 1000
}
number = 0
s = s.replace("IV", "IIII").replace("IX", "VIIII")
s = s.replace("XL", "XXXX").replace("XC", "LXXXX")
s = s.replace("CD", "CCCC").replace("CM", "DCCCC")
for char in s:
number += translations[char]
return number
</pre>

My Solution: <ref>https://leetcode.com/problems/roman-to-integer/solutions/6742002/roman-to-int-13/</ref>
<pre>
class Solution:
def romanToInt(self, s: str) -> int:
i = 0
t = 0
slen = len(s)
roman = {"I": 1, "V": 5, "X": 10, "L": 50, "C": 100, "D": 500, "M": 1000}
rdic = {"IV": 4, "IX": 9, "XL": 40, "XC": 90, "CD": 400, "CM": 900}
while i < slen:
c = s[i]
if i + 1 < slen and c in ("I", "X", "C"):
cc = c + s[i+1]
if cc in rdic:
t += rdic[cc]
i += 2
continue
t += roman[c]
i += 1
print(t)
return t
</pre>

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