Maples7

摘要： Add DigitsGiven a non-negative integernum, repeatedly add all its digits until the result has only one digit.For example:Givennum = 38, the process is... 阅读全文

摘要： Roman to IntegerGiven a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.首先学习一下罗马数字的规则：羅馬數字共有7個，即I（1）... 阅读全文