摘要：
Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.下面是百度得到的关于罗马数的解释：我的代码： 1 class Solution { 2 ... 阅读全文
摘要：
A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message conta... 阅读全文