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Added algorithm to convert any integer to roman numerals

pull/1207/head
Matthew Volpe 2023-06-22 20:20:55 -04:00
parent ce40163169
commit e2e04aa9d0
1 changed files with 16 additions and 8 deletions
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24
algorithms/Python/strings/int-to-roman.py
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@ -1,23 +1,31 @@
''' '''
Output the correct Roman numerals for a given number. Output the correct Roman numerals for a given number.
This will only give accurate roman numerals up to 3,999. Anything higher starts to combine the addition method along with the traditional method.
Numbers higher than 3,999 need to show a line above a roman numeral to say that it is 1,000 times that number. ie: V(with the line above) would be 5,000.
Input: 1994 Input: 1994
Output: MCMXCIV Output: MCMXCIV
MDCD
Time Complexity: ??? Time Complexity: O(1)
Space Complexity: ??? Space Complexity: O(1)
''' '''
def int_to_roman(num): def int_to_roman(num):
reference = [("M", 1000), ("CM", 900), ("D", 500), ("CD", 400), ("C", 100), ("XC", 90), ("L", 50), ("XL", 40), ("X", 10), ("IX", 9), ("V", 5), ("IV", 4), ("I", 1)] reference = [("M", 1000), ("CM", 900), ("D", 500), ("CD", 400), ("C", 100), ("XC", 90), ("L", 50), ("XL", 40), ("X", 10), ("IX", 9), ("V", 5), ("IV", 4), ("I", 1)]
remainder = num
romans = ""
for i in range(len(reference)):
quotient = int(remainder / reference[i][1])
remainder = remainder % reference[i][1]
romans += reference[i][0] * quotient
return romans
for numeral in range(len(reference)):
if numeral[1]:
...
if __name__ == "__main__": if __name__ == "__main__":
print(int_to_roman(1994)) print(int_to_roman(3999))
# MCMXCIV # MMMDXLIX