CodeForces 157B Trace

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B. Trace time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output One day, as Sherlock Holmes was tracking down one very important criminal, he found a wonderful painting on the wall. This wall cou…

codeforces157B

Trace CodeForces - 157B One day, as Sherlock Holmes was tracking down one very important criminal, he found a wonderful painting on the wall. This wall could be represented as a plane. The painting had several concentric circles that divided the wall…

OUC_Summer Training_ DIV2_#5

这是做的最好的一次了一共做了4道题嘻嘻~ A - Game Outcome Time Limit:2000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 157A Description Sherlock Holmes and Dr. Watson played some game on a checkered board n × n in siz…

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前言 HTTP Method的历史: HTTP 0.9 这个版本只有GET方法 HTTP 1.0 这个版本有GET HEAD POST这三个方法 HTTP 1.1 这个版本是当前版本,包含GET HEAD POST OPTIONS PUT DELETE TRACE CONNECT这8个方法我们先看看HTTP 1.1 规范的中文翻译方法定义(Method Definitions) HTTP/1.1常用方法的定义如下.虽然方法可以被展开,但新加的方法不能认为能分享与扩展的客户端和服务器同样的语义…

python爬虫学习(5) —— 扒一下codeforces题面

上一次我们拿学校的URP做了个小小的demo.... 其实我们还可以把每个学生的证件照爬下来做成一个证件照校花校草评比另外也可以写一个物理实验自动选课... 但是出于多种原因,,还是绕开这些敏感话题.. 今天,我们来扒一下cf的题面! PS:本代码不是我原创 1. 必要的分析 1.1 页面的获取一般情况CF的每一个 contest 是这样的: 对应的URL是:http://codeforces.com/contest/xxx 还有一个Complete problemset页面,它是这样的:…

【Codeforces 738D】Sea Battle（贪心）

http://codeforces.com/contest/738/problem/D Galya is playing one-dimensional Sea Battle on a 1 × n grid. In this game a ships are placed on the grid. Each of the ships consists of bconsecutive cells. No cell can be part of two ships, however, the shi…