Python: Convert a roman numeral to an integer
Python Class: Exercise-2 with Solution
Write a Python class to convert a Roman numeral to an integer.
Sample Solution:
Python Code:
class py_solution:
def roman_to_int(self, s):
rom_val = {'I': 1, 'V': 5, 'X': 10, 'L': 50, 'C': 100, 'D': 500, 'M': 1000}
int_val = 0
for i in range(len(s)):
if i > 0 and rom_val[s[i]] > rom_val[s[i - 1]]:
int_val += rom_val[s[i]] - 2 * rom_val[s[i - 1]]
else:
int_val += rom_val[s[i]]
return int_val
print(py_solution().roman_to_int('MMMCMLXXXVI'))
print(py_solution().roman_to_int('MMMM'))
print(py_solution().roman_to_int('C'))
Sample Output:
3986 4000 100
Pictorial Presentation:
Flowchart:

Python Code Editor:
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Previous: Write a Python class to convert an integer to a roman numeral.
Next: Write a Python class to find validity of a string of parentheses, '(', ')', '{', '}', '[' and ']. These brackets must be close in the correct order,
for example "()" and "()[]{}" are valid but "[)", "({[)]" and "{{{" are invalid.
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