def visibility_graph(series): g = nx.Graph() # convert list of magnitudes into list of tuples that hold the index tseries = [] n = 0 for magnitude in series: tseries.append((n, magnitude)) n += 1 '''add nodes''' for i in range(len(tseries)): (ta, ya)…

A Bug's Life Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 34678   Accepted: 11339 Description Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different gender…

传送门:A Bug's Life Description Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that they only interact with bugs of the opposite gender. In his experiment,…

[POJ2586]Y2K Accounting Bug 试题描述 Accounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual report for MS Inc. All what they remember is that MS Inc. posted a surplus or a deficit each month…

题目意思:给定一系列数对,例如a和b,表示a和b不是同一种性别,然后不断的给出这样的数对,问有没有性别不对的情况. 例如给定: 1    2 3    4 1    3 那这里就是说1和2不是同种性别,3和4也不是同种性别,1和3不是同种性别,那这样就说明1和3是同一种性别,2和4是同一种性别,所以没有任何歧义,这时候输出No suspicious bugs found!. 但是例如 1 2 2 3 1 3 1和2不同性别,2和3不同性别,那么1和3同一性别的,但是第三组数对又表明1和3不同性别…

1.  Bug #72215 When LOCK_plugin conflicts very much, one uninstall-audit-plugin operation crash  http://bugs.mysql.com/bug.php?id=72215   2.  Bug #72217 When uninstall a audit plugin, there is a warning info which is not correct  http://bugs.mysql.co…

Author: Emmanuel Goossaert 翻译 This article is a short guide to implementing an algorithm from a scientific paper. I have implemented many complex algorithms from books and scientific publications, and this article sums up what I have learned while se…

Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 33833   Accepted: 11078 Description Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that th…

Y2K Accounting Bug Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12251   Accepted: 6202 Description Accounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual report for MS Inc…

题目链接:http://acm.hnu.cn/online/?action=problem&type=show&id=12833&courseid=268 解题报告:有个11个月大的程序员写了一个二分查找,想要实现的功能是输入一个数组,数组里面都是100以内的整数,然后输入一个x,如果这个数组中存在大于等于x的 数就输出这个数在数组中的位置,如果没有就输出数组的长度,但是这个代码有bug.现在给出数组长度n,x,还有一个y,y为1的时候让你出一组可以让这段代码得到正确答案的数据,y…

题目地址:http://poj.org/problem?id=2586 /* 题意:某公司要统计全年盈利状况,对于每一个月来说,如果盈利则盈利S,如果亏空则亏空D. 公司每五个月进行一次统计,全年共统计8次(1-5.2-6.3-7.4-8.5-9.6-10.7-11.8-12), 已知这8次统计的结果全部是亏空(盈利-亏空<0).题目给出S和D,判断全年是否能盈利, 如果能则求出盈利的最大值,如果不能盈利则输出Deficit 贪心 or 枚举 1. 贪心抓住亏损的月尽量在5个月的后面,这样可以被…

移动机器人智能的一个重要标志就是自主导航,而实现机器人自主导航有个基本要求--避障.避障是指移动机器人根据采集的障碍物的状态信息,在行走过程中通过传感器感知到妨碍其通行的静态和动态物体时,按照一定的方法进行有效地避障,最后达到目标点.实现避障与导航的必要条件是环境感知,在未知或者是部分未知的环境下避障需要通过传感器获取周围环境信息,包括障碍物的尺寸.形状和位置等信息,因此传感器技术在移动机器人避障中起着十分重要的作用.避障使用的传感器主要有超声传感器.视觉传感器.红外传感器.激光传感器等. 目前…

题目链接: http://codeforces.com/problemset/problem/421/D D. Bug in Code time limit per test 1 secondmemory limit per test 256 megabytes 问题描述 Recently a serious bug has been found in the FOS code. The head of the F company wants to find the culprit and pu…

A Bug's Life Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 30130   Accepted: 9869 Description Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders…

先说说种类并查集吧. 种类并查集是并查集的一种.但是,种类并查集中的数据是分若干类的.具体属于哪一类,有多少类,都要视具体情况而定.当然属于哪一类,要再开一个数组来储存.所以,种类并查集一般有两个数组,一个存并查集内的父子关系,一个存各个节点所属的种类关系. 以这道题为例(题意在后面,如果没有读题,可以先看完题在来看这部分)—— 这道题很明显,将bug分成两类,一公一母.但是实际上我们并不关心它是公的还是母的,只关心它们之间是同性还是异性.所以,我们可以设与并查集的根节点同性的为0,反之为1.所…

这个题目巧妙之处在于用二进制的每个位1,0分别表示bug的有无,以及实施补丁对相应bug的要求以及实施后的对bug的影响. 软件bug的状态:1表示相应bug仍然存在,0表示已经修复.这样可以将软件的状态用一个整数表示,例如1100(12)表示第1,2个bug存在,后面两个已经修复. 那么,对于n个bug 的软件,起点src = (1<<n)-1表示软件初始状态 111....111,终点sink = 0表示软件已经修复. 实施补丁的条件: +-0 表示实施该补丁需要第1个bug存在,第2个b…

这个题目很有意思啊,有一些bug生物(肯定是程序员养的),有人观察他们的生活习惯,观察他们之间是否有同性恋关系,比如ab发生关系,bc发生关系,ab发生关系...产生了同性恋了,你需要判断一下这种关系是不是存在. 分析,这个跟食物链没什么区别,而且条件还少了不少,规定同性关系是0, 异性关系是1 ////////////////////////////////////////////////////////////////////// #include <stdio.h> #include&l…

                                                                                                A Bug's Life                  Background  Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two…

In this problem, we consider a simple programming language that has only declarations of one-dimensional integer arrays and assignment statements. The problem is to find a bug in the given program. The syntax of this language is given in BNF as follo…

素数回文 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 16487    Accepted Submission(s): 3677 Problem Description xiaoou33对既是素数又是回文的数特别感兴趣.比如说151既是素数又是个回文.现在xiaoou333想要你帮助他找出某个范围内的素数回文数,请你写个程序找出 a…

Aho - Corasick string matching algorithm 俗称:多模式匹配算法,它是对 Knuth - Morris - pratt algorithm (单模式匹配算法) 形成多模式匹配算法的一种改进,如果我们用单模式匹配算法实现多模式匹配算法,假如模式串有 M 个 , 则需要重复调用 M 次单模式匹配算法 : 举个很简单的例子,假如我现在有一本特殊的字典,字典中的词汇就是所有的模式串,然后给你一篇文章(全英文),让你查一下这篇文章中有多少个词汇在字典中可以查得到:(为…

VIPS: a VIsion based Page Segmentation Algorithm VIPS: a VIsion based Page Segmentation Algorithm Introduction The VIsion-based Page Segmentation (VIPS) algorithm aims to extract the semantic structure of a web page based on its visual presentation.…

这题直接隐式图 + 位运算暴力搜出来的,2.5s险过,不是正法,做完这题做的最大收获就是学会了一些位运算的处理方式. 1.将s中二进制第k位变成0的处理方式: s = s & (~(1 << pos)); 将s中二进制第k位变成1的处理方式: s = s | (1 << pos); 2.二进制运算: [1] & : 1 & 1 = 1 , 1 & 0 = 0 , 0 & 0 = 0; 高速推断奇偶性: if(a & 1);//为奇数…

磁盘满了,由于使用的是lvm,想要扩容时发现无论lvs还是lvdisplay这类命令都会报同样的错: [root@localhost qwang]# lvs Parse error at (line ): unexpected token Error parsing metadata for VG fedora. Skipping volume group fedora Internal error: Volume Group fedora was not unlocked 各种搜索无果,翻出一…

Y2K Accounting Bug Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10024 Accepted: 4990 Description Accounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual report for MS Inc. Al…

Description Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that they only interact with bugs of the opposite gender. In his experiment, individual bugs…

http://oj.acm.zstu.edu.cn/JudgeOnline/problem.php?id=4434 没有用队列,疯狂找不到bug,后来发现很简单的判断时==n和m了,本来心花怒放,测试数据也过了.然而,呜呼,许久不见的re: 好的,re,re,重新,重新!! 然而,不死心的在开更大一点,发现是WA. 那什么时候bfs用数组就行了呢.. 唔,下面那个标注里 mark不会冲突,如果到了这个点上,那他往哪里走的可能性都是一样的 不改变就重复了 #include<cstdio> #in…

Bug 14143011 : ORA-19606: CANNOT COPY OR RESTORE TO SNAPSHOT CONTROL FILE [oracle@test]$ tail -f rman_delete.log   Backup Piece       3687   2018:06:08 01:05:13 /home/oracle/nfs/arch_TRANDB_20180608_3789_1 RMAN-00571: ================================…

Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that they only interact with bugs of the opposite gender. In his experiment, individual bugs and their in…

Background  Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that they only interact with bugs of the opposite gender. In his experiment, individual bugs and their i…