2016 Multi-University Training Contest 3 总结
又是多校总结时间。
这两天重感冒,精神不佳,总结一拖再拖,结果到了多校第四场结束后回来总结第三场。不过因为还在补第三场的题,所以还是记得挺清楚的
欣君说决定自己AFK试试,于是全程读题算公式。
欣君翻译完01,我跟磊哥同时脱口而出,水题,于是磊哥码之,一发WA,改后A。
我自己看了07,觉得边对于答案的贡献可以分奇偶性讨论,按想法码之,TLE。开栈,WA。
欣君02题算出公式,磊哥照公式写,一A。
欣君转述03题意,表示可做。(磊哥:为什么你每次总觉得这种这么复杂的题目要先做呢?(无奈脸)。随后两发过03。
我想到11题鸽巢原理,A之。
10题欣君想了一个神奇的公式,得到一个WA。
于是我们队采用人工智能的方法,每隔一段时间重修正方向来拟合轨迹。由于精度要求苛刻,TLE。欣君突发奇想,两种方法对照了一下答案,发现公式无误,发觉是边界问题,处理完边界,AC。
之后全队开始找我07代码的bug,怀疑思路有误,但是未能构造反例(第二天被通神的反例击败),一直bug到比赛结束。最终排名97。
补04题,发现我们都不会高斯消元,于是做了一些高斯消元的题补上短板。
最后07题的解法还是和奇偶性密切相关。朴素的树形DP,分类讨论即可。当时队伍全体都被我贡献值固定的思路带入死胡同,其实只要改成DP就能过此题。
这场多校的罚时相对上一场有了一些降低,题数变多了(嘛,这也是进步呀,欣君如是说)。
深夜,准备睡觉,明天又是新的一天。
晚安,仍在灯光下努力着的人们。
我们的目标是没有蛀牙,远离感冒,以及星辰大海。
2016 Multi-University Training Contest 3 总结的更多相关文章
- 2016 Al-Baath University Training Camp Contest-1
2016 Al-Baath University Training Camp Contest-1 A题:http://codeforces.com/gym/101028/problem/A 题意:比赛 ...
- 2016 Al-Baath University Training Camp Contest-1 E
Description ACM-SCPC-2017 is approaching every university is trying to do its best in order to be th ...
- 2016 Al-Baath University Training Camp Contest-1 A
Description Tourist likes competitive programming and he has his own Codeforces account. He particip ...
- 2016 Al-Baath University Training Camp Contest-1 J
Description X is fighting beasts in the forest, in order to have a better chance to survive he's gon ...
- 2016 Al-Baath University Training Camp Contest-1 I
Description It is raining again! Youssef really forgot that there is a chance of rain in March, so h ...
- 2016 Al-Baath University Training Camp Contest-1 H
Description You've possibly heard about 'The Endless River'. However, if not, we are introducing it ...
- 2016 Al-Baath University Training Camp Contest-1 G
Description The forces of evil are about to disappear since our hero is now on top on the tower of e ...
- 2016 Al-Baath University Training Camp Contest-1 F
Description Zaid has two words, a of length between 4 and 1000 and b of length 4 exactly. The word a ...
- 2016 Al-Baath University Training Camp Contest-1 D
Description X is well known artist, no one knows the secrete behind the beautiful paintings of X exc ...
- 2016 Al-Baath University Training Camp Contest-1 C
Description Rami went back from school and he had an easy homework about bitwise operations (and,or, ...
随机推荐
- Which PHP mode? Apache vs CGI vs FastCGI
Which PHP mode? Apache vs CGI vs FastCGI There are multiple ways to execute PHP scripts on a web ser ...
- Scrapy入门程序点评
1,引言 在<Scrapy的架构初探>一文,我基于爬虫开发的经验对Scrapy官网文章作了点评和解读,事件驱动的异步处理架构.极强的模块化等是个绝好的框架,接着我细读了官网的<Scr ...
- C语言笔记——简介与编译过程初探
序言 从今天起,详细说说C语言.这一年多,在大多数语言和技术之间转了一大圈,终于看清楚了事实,决心静下心来好好学学C语言.初学者会认为C语言是个入门用的东西,没有必要深入研究.但对计算机领域再稍加了解 ...
- python--getitme\setitem 支持索引与分片
1.想要自己定义的python对象支持索引与分片操作就要重载__getitem__\__setitem__这两个方法. 2.__getitme__(self,index) 这里的index参数可能类型 ...
- linux系统下安全管理
1.引导程序安全 linux系统的root密码是很容易破解的,当然前提是你没有设置引导程序密码,如GRUB或LILO,为了防止通过引导程序破译root密码,强烈建 议设置GRUB或LILO的引导密码, ...
- firemonkey打开子窗体(匿名回调函数)
procedure TForm1.Button1Click(Sender: TObject);varChildForm: TForm2;beginChildForm := TForm2.Create( ...
- JavaScript代码编写尝试使用Vanilla JS 或者Jquery插件
From Here: http://vanilla-js.com/ Vanilla JS is a fast, lightweight, cross-platform frameworkfor bui ...
- linear encoder 和 PCA
- A fatal error has been detected by the Java Runtime Environment:
在Eclipse中运行项目 遇到如下错误: ## A fatal error has been detected by the Java Runtime Environment:## EXCEPTIO ...
- 十大算法 pagerank 傅里叶变换
来源于最近阅读的一些链接 首先是介绍十大算法的 http://blog.jobbole.com/70639/ 然后是pageRank算法 http://blog.jobbole.com/23286/ ...