#39255: python 答案(AC)
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編號 : 260729
來源 : [223.137.74.124]
最後登入時間 ：
2024-06-01 19:37:05
def roman_to_int(roman):
roman_dict = {
'I': 1, 'V': 5, 'X': 10,
'L': 50, 'C': 100, 'D': 500, 'M': 1000
}
num = 0
prev_value = 0
for symbol in roman:
value = roman_dict[symbol]
if value > prev_value:
num += value - 2 * prev_value
else:
num += value
prev_value = value
return num
def int_to_roman(n):
val = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1]
syms = ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I']
roman_num = ''
for i in range(len(val)):
while n >= val[i]:
roman_num += syms[i]
n -= val[i]
return roman_num
while True:
line = input()
if line == '#':
break
num1, num2 = map(roman_to_int, line.split())
diff = abs(num1 - num2)
if diff == 0:
print("ZERO")
else:
roman_diff = int_to_roman(diff)
print(roman_diff)
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