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"# Write a Python class to convert a roman numeral to an integer\n",
"\n",
"# Sample input\n",
"# 'MMMCMLXXXVI'\n",
"# 'MMMM'\n",
"# 'C'\n",
"\n",
"# Sample output\n",
"# 3986 \n",
"# 4000 \n",
"# 100\n",
"\n",
"class py_solution:\n",
" def roman_to_int(self, s):\n",
" rom_val = {'I': 1, 'V': 5, 'X': 10, 'L': 50, 'C': 100, 'D': 500, 'M': 1000}\n",
" int_val = 0\n",
" for i in range(len(s)):\n",
" if i > 0 and rom_val[s[i]] > rom_val[s[i - 1]]:\n",
" int_val += rom_val[s[i]] - 2 * rom_val[s[i - 1]]\n",
" else:\n",
" int_val += rom_val[s[i]]\n",
" return int_val\n",
"\n",
"print(py_solution().roman_to_int('MMMCMLXXXVI'))\n",
"print(py_solution().roman_to_int('MMMM'))\n",
"print(py_solution().roman_to_int('C'))"
]
}
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