2018年1月5日
LeetCode - 2 Keys Keyboard
摘要： Initially on a notepad only one character 'A' is present. You can perform two operations on this notepad for each step: Given a number n. You have to 阅读全文
posted @ 2018-01-05 09:10 YWU 阅读(87) 评论(0) 推荐(0)