Fackyyj loves the challenge phase in TwosigmaCrap(TC). One day, he meet a task asking him to find shortest path from vertex 1 to vertex n, in a graph with at most n vertices and m edges. (1 ≤ n ≤ 100,0 ≤ m ≤ n(n-1)) Fackyyj solved this problem at fir…

其实这个题是抄的题解啦…… 题解给了一个图,按照那个图模拟一遍大概就能理解了. 题意: 有一段程序,给你一个C值(程序中某常量),让你构造一组数据,使程序输出"doge" 那段代码大概是 SPFA的SLF优化.其实题目的意思是让我们构造一组数据,使得总的出队次数大于C.        数据范围 C<=23,333,333.输出的图中最多有100个点,没有重边.自环.负环. 思路: SLF: 设队首元素为 i, 队列中要加入节点 j, 在        时加到队首而不是队尾, 否则…

(THIS BLOG WAS ORIGINALLY WRTITTEN IN CHINESE WITH LINK: http://www.cnblogs.com/waytofall/p/3732920.html) Foreword: Floyd-Warshall is a classical dynamical programming algorithm for deriving shortest paths between each pair of nodes on a graph. It ha…

特别说明 本文转载自三金(frinemore)的博客: 点这 前言 1.关于SPFA,它没死. 2.接下来的所有代码,都是自己手写的(未检查正确性,补充的代码有检查过,是对的),有错误请帮忙指出. SPFA原理及正确性 若给定的图存在负权边,类似Dijkstra算法等算法便没有了用武之地,SPFA算法便派上用场了.简洁起见,我们约定加权有向图G不存在负权回路,即最短路径一定存在.用数组d记录每个结点的最短路径估计值,而且用邻接表来存储图G.我们采取的方法是动态逼近法:设立一个先进先出的队列用来保…

官方解题报告http://blog.sina.com.cn/s/blog_a19ad7a10102uyiq.html Wow! Such Sequence! http://acm.hdu.edu.cn/showproblem.php?pid=4893 线段树,比赛时写的不好. #include<cstdio> #include<algorithm> #define lrrt int L,int R,int rt #define iall 1,n,1 #define imid int…

A curated list of awesome Go frameworks, libraries and software. Inspired by awesome-python. Contributing Please take a quick gander at the contribution guidelines first. Thanks to all contributors; you rock! If you see a package or project here that…

If you see a package or project here that is no longer maintained or is not a good fit, please submit a pull request to improve this file. Thank you! Contents Awesome Go Audio and Music Authentication and OAuth Command Line Configuration Continuous I…

A curated list of awesome Go frameworks, libraries and software. Inspired by awesome-python. Contributing Please take a quick gander at the contribution guidelines first. Thanks to all contributors; you rock! If you see a package or project here that…

Awesome Go      financial support to Awesome Go A curated list of awesome Go frameworks, libraries and software. Inspired by awesome-python. Contributing Please take a quick gander at the contribution guidelines first. Thanks to all contributors; you…

题面 题解 我们可以总结出球的两种状态,要么自己飞,要么在球员脚下被带飞. 自己飞的情况下,他只能单向直线运动,每一步代价为A,被带飞可以乱走,每一步代价为C. 从自己飞到被带飞需要一个距离自己最近的球员过来,代价为 ,对于每个格点,这个代价都是确定的,因为球不可能两次到同一个球员脚下,所以球员就相当于一次性的工具人,输入后bfs处理 就可以了. 从被带飞到自己飞需要踢一脚,给它自由,代价为B. 那么我们可以把每个格点拆成5个点,然后建个图. 自己飞要四个点,分别表示四个方向,每个点朝那个方向的…

5152. Brute-force Algorithm EXTREME Problem code: BFALG Please click here to download a PDF version of the contest problems. The problem is problem B in the PDF. But the data limits is slightly modified: 1≤P≤1000000 in the original description, but i…

In one embodiment, a source device detects a packet flow that meets criteria for multi-path forwarding, and forwards a probe packet on a primary path from the source device to a destination device, the probe packet carrying an indication to cause a p…

Brute-force Algorithm Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2740    Accepted Submission(s): 728 Problem Description Professor Brute is not good at algorithm design. Once he was asked t…

We know that the longest path problem for general case belongs to the NP-hard category, so there is no known polynomial time solution for it. However, for a special case which is directed acyclic graph, we can solve this problem in linear time. First…

Breadth first search is a graph search algorithm that starts at one node and visits neighboring nodes as widely as possible before going further down any other path. This algorithm requires the use of a queue to keep track of which nodes to visit, so…

This article come from HEREARS-L1: Learning Tuesday 10:30–12:30; Oral Session; Room: Leonard de Vinci 10:30  ARS-L1.1—GROUP STRUCTURED DIRTY DICTIONARY LEARNING FOR CLASSIFICATION Yuanming Suo, Minh Dao, Trac Tran, Johns Hopkins University, USA; Hojj…

Problem Description Professor Brute is not good at algorithm design. Once he was asked to solve a path finding problem. He worked on it for several days and finally came up with the following algorithm:Any fool but Brute knows that the function "funn…

https://www.hackingwithswift.com/ios9 Search extensibility Update: I wrote a tutorial on Core Spotlight in iOS 9 as Hacking with Swift project 32 – check it out! Finally (finally!) you can hook your apps directly into Spotlight for integrated, system…

cg教程下载: http://cgpeers.com http://cgpersia.com http://bbs.ideasr.com/forum-328-1.html http://bbs.ideasr.com/forum-337-1.html  (杂志&期刊) http://www.rr-sc.com/ http://forum.gfxnews.orghttp://rutracker.org www.9iv.com http://www.ccgtv.cn/     资讯 http://ww…

源码地址:https://github.com/nalin1096/path_planning 路径规划 使用ROS实现了基于RRT路径规划算法. 发行版 - indigo 算法在有一个障碍的环境找到优化的路径.算法可视化在RVIZ完成,代码是用C ++编写. 包有两个可执行文件: 1 ros_node 2 env_node RVIZ参数: 1 Frame_id ="path_planner" 2 marker_topic ="path_planner_rrt" 说…

Given an array equations of strings that represent relationships between variables, each string equations[i] has length 4and takes one of two different forms: "a==b" or "a!=b".  Here, a and b are lowercase letters (not necessarily diff…

描述 谷歌.百度等搜索引擎已经成为了互连网中不可或缺的一部分.在本题中,你的任务也是设计一个搜索论文的搜索引擎,当然,本题的要求比起实际的需求要少了许多. 本题的输入将首先给出一系列的论文,对于每篇论文首先给出标题,然后给出它被引用的次数.然后会有一系列的搜索询问,询问标题中包含特定关键词的论文有哪些. 每一个询问包含一个关键词词(一个单词),你需要找出标题包含关键词的论文. “包含”必须是标题中有一个词正好是给定的关键词,不区分大小写. 对每个询问,都按被引用的次数从多到少输出满足条件的论文的…

1. 使用OpenCV进行标定 相机已经有很长一段历史了.但是,伴随着20世纪后期的廉价针孔照相机的问世,它们已经变成我们日常生活的一种常见的存在.不幸的是,这种廉价是由代价的:显著的变形.幸运的是,这些是常数而且使用标定和一些重绘我们可以矫正这个.而且,使用标定你还可以确定照相机的像素和真实世界的坐标单位毫米之间关系. 原理: 对于变形(镜头畸变),OpenCV考虑径向畸变和切向畸变. 对于径向畸变参数使用以下公式: 所以对于一个输入图像的旧像素点(x,y),它在输出图像的新像素点坐标将会是(…

转载自牛猫靖  http://www.cnblogs.com/2008nmj/p/6278076.html 使用OpenCV进行相机标定 1. 使用OpenCV进行标定 相机已经有很长一段历史了.但是,伴随着20世纪后期的廉价针孔照相机的问世,它们已经变成我们日常生活的一种常见的存在.不幸的是,这种廉价是由代价的:显著的变形.幸运的是,这些是常数而且使用标定和一些重绘我们可以矫正这个.而且,使用标定你还可以确定照相机的像素和真实世界的坐标单位毫米之间关系. 原理: 对于变形(镜头畸变),Open…

Brute-force Algorithm Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2560    Accepted Submission(s): 657 Problem Description Professor Brute is not good at algorithm design. Once he was asked t…

原地址:http://www.cnblogs.com/cocoaleaves/archive/2009/03/23/1419346.html 学校的MSTC要出杂志,第一期做游戏专题,我写了一下AI,发在“技术入门”栏目.对AI做这样整体设计的内容网上不多见,还请各位高手多多指正~ 游戏AI的综合设计 AI (Artificial Intelligence)作为游戏的重要组成部分,对游戏的可玩性起到越来越大的作用.玩家早已不满足傻瓜似的敌人和NPC,渴望见到能像人一样思考的虚拟人物.本文首先介绍…

Code Project精彩系列(转)   Code Project精彩系列(转)   Applications Crafting a C# forms Editor From scratch http://www.codeproject.com/csharp/SharpFormEditorDemo.asp 建立一个类似C#的环境, 实现控件拖拉,属性 Packet Capture and Analayzer 网络封包截获 http://www.codeproject.com/csharp/pa…

https://docs.unity3d.com/2018.4/Documentation/Manual/Glossary.html 2D terms 2D Physics terms AI terms Analytics terms Animation terms Assets terms Audio terms Core terms Editor terms General terms Graphics terms Lighting terms Multiplayer terms Packa…

第一部分 基础 第1章 导论 (已看) 第2章 专业工具 (已看) 第3章 游戏软件工程基础 (已看) 第4章 游戏所需的三维数学 (已看) 第二部分 低阶引擎系统 第5章 游戏支持系统 (已看) 第6章 资源及文件系统 (已看) 第7章 游戏循环及实时模拟 (已看) 第8章 人体学接口设备(HID) (已看) 第9章 调试及开发工具 (已看) 第三部分 图形及动画 第10章 渲染引擎 第11章 动画系统 (已看) 第12章 碰撞及刚体动力学 (已看) 第四部分 游戏性 第13章 游戏性系统简介…

下面是收集的一些开发工具包,主要是C/C++方面的,涉及图形.图像.游戏.人工智能等各个方面,感觉是一个比较全的资源.供参考!  原文的出处:http://www.codemonsters.de/home/content.php?show=freelibraries  //z 2015-07-30 15:24:34 L.154'30926 BG57IV3@XCL T3752479411.K.F1370514324[T81,L7803,R301,V7813] Contents 2D Graphic…