摘要： 一、题目Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last word in the string.If the last word... 阅读全文

摘要： 一、题目The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"one 1"or11.11is read off a... 阅读全文