10 2017 档案

LeetCode - 541. Reverse String II
摘要：Given a string and an integer k, you need to reverse the first k characters for every 2k characters counting from the start of the string. If there ar 阅读全文
posted @ 2017-10-22 17:05 Pickle 阅读(186) 评论(0) 推荐(0)
LeetCode - 551. Student Attendance Record I
摘要：You are given a string representing an attendance record for a student. The record only contains the following three characters: A student could be re 阅读全文
posted @ 2017-10-19 10:43 Pickle 阅读(164) 评论(0) 推荐(0)