Computer Science
Write a program to convert a given number into equivalent Roman number (store its value as a string). You can use following guidelines to develop solution for it:
- From the given number, pick successive digits, using %10 and /10 to gather the digits from right to left.
- The rules for Roman Numerals involve using four pairs of symbols for ones and five, tens and fifties, hundreds and five hundreds. An additional symbol for thousands covers all the relevant bases.
- When a number is followed by the same or smaller number, it means addition. "II" is two 1's = 2. "VI" is 5 + 1 = 6.
- When one number is followed by a larger number, it means subtraction. "IX" is 1 before 10 = 9. "IIX isn't allowed, this would be "VIII". For numbers from 1 to 9, the symbols are "I" and "V", and the coding works like this. "I" , "II", "III", "IV", "V", "VI", "VII", "VIII", "IX".
- The same rules work for numbers from 10 to 90, using "X" and "L". For numbers from 100 to 900, using the symbols "C" and "D". For numbers between 1000 and 4000, using "M".
Here are some examples. 1994 = MCMXCIV, 1956 = MCMLVI, 3888= MMMDCCCLXXXVIII
Answer
n = int(input("Enter the number: "))
num = (1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1)
rom = ('M', 'CM', 'D', 'CD','C', 'XC','L','XL','X','IX','V','IV','I')
result = ''
for i in range(len(num)) :
count = int(n / num[i])
result += str(rom[i] * count)
n -= num[i] * count
print(result)Output
Enter the number: 1994
MCMXCIV
=====================================
Enter the number: 1956
MCMLVI
=====================================
Enter the number: 3888
MMMDCCCLXXXVIII
Related Questions
Write a program that takes two strings from the user and displays the smaller string in single line and the larger string as per this format :
1st letter last letter 2nd letter 2nd last letter 3rd letter 3rd last letterFor example,
if the two strings entered are Python and PANDA then the output of the program should be :PANDA P n y o t hWrite a program that does the following :
- takes two inputs : the first, an integer and the second, a string
- from the input string extract all the digits, in the order they occurred, from the string.
- if no digits occur, set the extracted digits to 0
- add the integer input and the digits extracted from the string together as integers
- print a string of the form :
"integerinput + stringdigits = sum"
For example :
For inputs 12, 'abc123' → '12 + 123 = 135'
For inputs 20, 'a5b6c7' → '20 + 567 =587'
For inputs 100, 'hi mom' → '100 + 0 = 100'Write a program that asks the user for a string (only single space between words) and returns an estimate of how many words are in the string. (Hint. Count number of spaces)
Write a program to input a formula with some brackets and checks, and prints out if the formula has the same number of opening and closing parentheses.