一无所知小白龙

2018年8月4日

摘要： The most exciting space discovery occurred at the end of the 20th century. In 1999, scientists traced down an ant like creature in the planet Y1999 an 阅读全文

posted @ 2018-08-04 10:52 一无所知小白龙阅读(292) 评论(1) 推荐(0) 编辑

A - Wall

摘要： Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he wou 阅读全文

posted @ 2018-08-04 10:50 一无所知小白龙阅读(387) 评论(0) 推荐(0) 编辑

2018年8月3日

凸包问题

摘要：扫描法：O(n lgn) 先取一点最下，最左的点开始，以它为基点，做极坐标方程，其他点按角度排序，角度相同按对它的距离排序；后面以下一个点为基点排序，但是如果在用sort，复杂度就变成O(n^2)了，所以不能这样；（衍生出一种题目，如果数据不多，而且要求以蚊香式输出点的话可以这样）所以对下一点为阅读全文

posted @ 2018-08-03 10:19 一无所知小白龙阅读(163) 评论(0) 推荐(0) 编辑

2018年8月2日

H - Windows Message Queue

摘要： Message queue is the basic fundamental of windows system. For each process, the system maintains a message queue. If something happens to this process 阅读全文

posted @ 2018-08-02 16:51 一无所知小白龙阅读(315) 评论(0) 推荐(0) 编辑

F - Rails

摘要： There is a famous railway station in PopPush City. Country there is incredibly hilly. The station was built in last century. Unfortunately, funds were 阅读全文

posted @ 2018-08-02 15:18 一无所知小白龙阅读(157) 评论(0) 推荐(0) 编辑

E - Train Problem I

摘要： As the new term comes, the Ignatius Train Station is very busy nowadays. A lot of student want to get back to school by train(because the trains in th 阅读全文

posted @ 2018-08-02 14:30 一无所知小白龙阅读(388) 评论(0) 推荐(0) 编辑

D - Replace To Make Regular Bracket Sequence

摘要： You are given string s consists of opening and closing brackets of four kinds , {}, [], (). There are two types of brackets: opening and closing. You 阅读全文

posted @ 2018-08-02 13:07 一无所知小白龙阅读(262) 评论(0) 推荐(0) 编辑

G - 看病要排队

摘要：看病要排队这个是地球人都知道的常识。不过经过细心的0068的观察，他发现了医院里排队还是有讲究的。0068所去的医院有三个医生（汗，这么少）同时看病。而看病的人病情有轻重，所以不能根据简单的先来先服务的原则。所以医院对每种病情规定了10种不同的优先级。级别为10的优先权最高，级别为1的优先权最低。阅读全文

posted @ 2018-08-02 08:55 一无所知小白龙阅读(270) 评论(0) 推荐(0) 编辑

2018年8月1日

C - Boxes in a Line 数组模拟链表

摘要： You have n boxes in a line on the table numbered 1 . . . n from left to right. Your task is to simulate 4 kinds of commands: • 1 X Y : move box X to t 阅读全文

posted @ 2018-08-01 20:58 一无所知小白龙阅读(302) 评论(0) 推荐(0) 编辑

B - Broken Keyboard (a.k.a. Beiju Text)

摘要： You’re typing a long text with a broken keyboard. Well it’s not so badly broken. The only problem with the keyboard is that sometimes the “home” key o 阅读全文

posted @ 2018-08-01 20:51 一无所知小白龙阅读(375) 评论(0) 推荐(0) 编辑

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