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Create Roman number to decimal #2018

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Create Roman number to decimal #2018

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40 changes: 40 additions & 0 deletions Roman number to decimal
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@

def value(r):
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Use switch statement, they are far better instead of this.

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Yea

if (r == 'I'):
return 1
if (r == 'V'):
return 5
if (r == 'X'):
return 10
if (r == 'L'):
return 50
if (r == 'C'):
return 100
if (r == 'D'):
return 500
if (r == 'M'):
return 1000
return -1

def romanToDecimal(str):
res = 0
i = 0

while (i < len(str)):
s1 = value(str[i])
if (i + 1 < len(str)):
s2 = value(str[i + 1])
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leetcode problem idea...I see.

if (s1 >= s2):
res = res + s1
i = i + 1
else:
res = res + s2 - s1
i = i + 2
else:
res = res + s1
i = i + 1

return res

romannumber = input("Enter the Roman Number you want to convert: ")
print("Integer form of Roman Numeral is: " + str(romanToDecimal(romannumber)))