摘要： 题目： Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string. If the last 阅读全文

摘要： 题目： The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ... 1 is read off as "one 1" or 11.11 is read 阅读全文