2014年12月18日
cf 496B Secret Combination
摘要： 题目链接：B. Secret CombinationYou got a box with a combination lock. The lock has a display showingndigits. There are two buttons on the box, each button ... 阅读全文
posted @ 2014-12-18 21:42 huangxf 阅读(338) 评论(0) 推荐(0)