C++

Like the faArabic scheme, Roman mumbers are written in decimal form; a Roman number contains thousands, hundreds, tens, and units "digits However, Roman numbers use strings of letters to represent each digit, with different letters used for the thousands, hundreds, tens, and units digits. Moreover, although Roman numbers are always written sothat the thousands digit comes first and the units digit last, there is no way to write "zero; you simply leave the digito Roman digits are written using the following letters, with each letter standing for a certain valu: D or d: five hundred Lor: fifty Vorv five Mor one thousand Corc: one hundred Xorx: ten I ori: one To represent digit values other than those above, digit letters are repeated; as a special case, digits 4 and 9 (and their corresponding higher place values) are written by prefixing the "S" and"10" letters with the "letter. The following table lists l valid Roman digits; note that the highest valid Roman number using this scheme is 3999 (MMMCMXCIx). CID DC LXX LXxx IX