题意: 卡片游戏 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 1088 Accepted Submission(s): 341 Problem Description 小明最近宅在家里无聊,于是他发明了一种有趣的游戏,游戏道具是N张叠在一起的卡片,每张卡片上都有一个数字,数字的范围是0~9,游戏规则如下: 首先取最上方的卡片放…
3016: [Usaco2012 Nov]Clumsy Cows Time Limit: 1 Sec Memory Limit: 128 MBSubmit: 71 Solved: 52[Submit][Status] Description Bessie the cow is trying to type a balanced string of parentheses into her new laptop, but she is sufficiently clumsy (due to h…
Shadowman loves to collect box but his roommates woogieman and itman don't like box and so shadowman wants to hide boxes as many as possible. A box can be kept hidden inside of another box if and only if the box in which it will be held is empty and…
Waca loves maths,.. a lot. He always think that 1 is an unique number. After playing in hours, Waca suddenly realize that every integer can be represented by digit '1', plus operator and minus operator. For example, 1534 can be represented as 1111 +…