摘要：
1 题目：Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.2 思路和上一道反过来，好吧，但是思路不一样。我写的代码思路一样，要考虑一些特... 阅读全文
2015年6月10日
摘要：
1 题目：Given an integer, convert it to a roman numeral.Input is guaranteed to be within the range from 1 to 3999.Hide TagsMathString2 思路：经过我仔细研读维基百科的说明h... 阅读全文
摘要：
1 题目：Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoint... 阅读全文
摘要：
1 题目：Implement regular expression matching with support for'.'and'*'.'.' Matches any single character.'*' Matches zero or more of the preceding elemen... 阅读全文