题目链接:传送门 题目大意:有50种动物,给你n*n的矩阵,m次操作,P代表加入操作,在左上角 x1,y1 到右下角 x2,y2,的矩形范围内加入 种类为x,数量为y的动物. Q代表询问操作,在左上角 x1,y1 到右下角 x2,y2,对于1~50种动物,如果数量之和为偶数,输出1,否则输出2. 题目思路:树状数组 区间异或,区间查询. /*--------------------------------------------------分割线-------------------------…

1001 Resident Evil 1002 List wants to travel 1003 hannnnah_j’s Biological Test 1004 Mathematician QSC 1005 Running King 1006 The Game 1007 odd-even number 1008 oasis in desert 1009 QSC and Master 1010 Count primes 哈哈哈哈...在高铁上打代码哟><…

最近GFW为了刷存在感,搞得大家是头晕眼花,修改hosts 几乎成了每日必备工作. 索性写了一个小程序,给办公室的同事们分享,其中有个内容 就是抓取网络上的hosts,废了一些周折. 我是在一个博客上抓取的.但是这位朋友的博客应该是在做防盗链,但他的方式比较简单就是5位数的一个整形随机数.这里折腾一下就ok了. 要命的是他这个链接的流类型 居然是gzip.这个郁闷好久,一直以为是编码格式导致解析不出来结果,后来发现是gzip搞的. 主要的一段代码做个记录吧. /** * 网络工具类 用于抓取ht…

俄罗斯的MSU Graphics & Media Lab (Video Group)出品的3D视频的质量评价报告.测试了一些3D视频的质量,其测试方法值得我们参考.在此翻译一下部分文字. 注:这是其第4个3D视频的质量评价报告,其实验报告中已经包含了前三次实验的数据,因此我们可以看到数据包含了很多的电影.电影中包含了2D转3D的电影(比如说<泰坦尼克号>)以及直接3D拍摄的电影(比如说<阿凡达>). 参与测试的3D电影 A Very Harold & Kumar 3…

个人翻译小站:http://www.zcfy.cc/article/creating-photorealistic-3d-graphics-on-the-web-css-tricks-4039.html 翻译原文链接:https://css-tricks.com/creating-photorealistic-3d-graphics-web/ 在成为一名web开发者之前,我从事于视觉设计行业,创造屡获殊荣,电影和电视节目等高端3D效果,例如 Tron, The Thing, Resident E…

GDC2017的资料最近放出来了,我筛选了一下 特别是Horizon放出很多干货,也有一些去年的末班车.Vulkan有一堆,但不是很感兴趣 感谢王同学的搬运和分类(包含以下链接pdf和视频): http://pan.baidu.com/s/1bI9vRo Horizon:Zero Dawn http://www.gdcvault.com/play/1024591/From-Shore-to-Horizon-Creating http://www.gdcvault.com/play/1024158…

Series的简单运算 import numpy as np import pandas as pd s1=pd.Series([1,2,3],index=['A','B','C']) print(s1) 结果: A 1 B 2 C 3 dtype: int64 s2=pd.Series([4,5,6,7],index=['B','C','D','E']) print(s2) 结果: B 4 C 5 D 6 E 7 dtype: int64 print(s1+s2)#对应的index相加,NaN…

XPath基础 XPath 即为 XML 路径语言,是一门在XML文档中查找信息的语言.XPath 基于 XML 的树状结构,有不同类型的节点,包括元素节点,属性节点和文本节点,提供在数据结构树中找寻节点的能力,可用来在 XML 文档中对元素和属性进行遍历.XPath 使用路径表达式来选取 XML 文档中的节点或者节点集. XPath节点 XPath中有七种节点类型:元素.属性.文本.命名空间.处理指令.注释以及文档节点(或成为根节点).文档的根节点即是文档结点:对应属性有属性结点,元素有元素结…

1.个人概况 双非院校本科毕业两年,已来德国一年. APS绩点2.5,均分80.17. 2020.6月考出5443德福成绩,7月中下旬递交材料,9月初获得Zulassung(录取) PS:后来考出5444冬季学期来不及结果没有用上. 申请2020 Winter Semester(冬季学期)Informatik Master德语授课 2.学校概况 中流tu9,计算机是其强势专业,介绍如下 达姆施特特工业大学 3.申请步骤 3.1 步骤1 在线申请网站 https://www.tu-darmstad…

目录 14.1 本篇概述 14.1.1 游戏引擎简介 14.1.2 游戏引擎模块 14.1.3 游戏引擎列表 14.1.3.1 Unreal Engine 14.1.3.2 Unity 14.1.3.3 CryEngine 14.1.3.4 Doom / Quake / ID Tech 14.1.3.5 OGRE 14.1.3.6 Gamebryo 14.1.3.7 BigWorld 14.1.3.8 Torque3D 14.1.3.9 Source Engine 14.1.3.10 Frost…

Meeting Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 1358    Accepted Submission(s): 435 Problem Description Bessie and her friend Elsie decide to have a meeting. However, after Farmer Jo…

http://acm.split.hdu.edu.cn/showproblem.php?pid=3853 LOOPS Problem Description   Akemi Homura is a Mahou Shoujo (Puella Magi/Magical Girl). Homura wants to help her friend Madoka save the world. But because of the plot of the Boss Incubator, she is t…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4198 Quick out of the Harbour Description Captain Clearbeard decided to go to the harbour for a few days so his crew could inspect and repair the ship. Now, a few days later, the pirates are getting land…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4027 Can you answer these queries? Description Problem Description A lot of battleships of evil are arranged in a line before the battle. Our commander decides to use our secret weapon to eliminate the b…

http://acm.hdu.edu.cn/showproblem.php?pid=1155 Bungee Jumping Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 811    Accepted Submission(s): 349 Problem Description Once again, James Bond is fle…

Kingdom of Black and White Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5583 Description In the Kingdom of Black and White (KBW), there are two kinds of frogs: black frog and white frog. Now N frogs are stand…

Jesus Is Here Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5459 Description I've sent Fang Fang around 201314 text messages in almost 5 years. Why can't she make sense of what I mean?``But Jesus is here!" the…

Magina Problem Description Magina, also known as Anti-Mage, is a very cool hero in DotA (Defense of the Ancient).If you have no idea of him, here is some brief introduction of his legendary antecedents:Twin sons to the great Prophet, Terrorblade and…

Fraction Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 0    Accepted Submission(s): 0 Problem Description Mr. Frog recently studied how to add two fractions up, and he came up with an evil ide…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5912 Problem Description Mr. Frog recently studied how to add two fractions up, and he came up with an evil idea to trouble you by asking you to calculate the result of the formula below:As a talent, ca…

Meeting Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1656    Accepted Submission(s): 515 Problem Description Bessie and her friend Elsie decide to have a meeting. However, after Farmer Joh…

HDU 3085 Nightmare Ⅱ(噩梦 Ⅱ) Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)   Problem Description - 题目描述 Last night, little erriyue had a horrible nightmare. He dreamed that he and his girl friend were trapped in a…

[hdu P3085] Nightmare Ⅱ Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2885 Accepted Submission(s): 806 Problem DescriptionLast night, little erriyue had a horrible nightmare. He dreamed that he a…

Meeting Time Limit: 12000/6000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 3361    Accepted Submission(s): 1073 Problem Description Bessie and her friend Elsie decide to have a meeting. However, after Farmer Jo…

Nightmare Ⅱ Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 720    Accepted Submission(s): 136 Problem Description Last night, little erriyue had a horrible nightmare. He dreamed that he and his…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3853 LOOPS Time Limit: 15000/5000 MS (Java/Others)Memory Limit: 125536/65536 K (Java/Others) 问题描述 Akemi Homura is a Mahou Shoujo (Puella Magi/Magical Girl). Homura wants to help her friend Madoka save t…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5521 题意:有1-n共n个点,给出m个块(完全图),并知道块内各点之间互相到达花费时间均为ti.已知两人分别在点1和点n,求在哪些点相遇能使得花费时间最短.题解:显然先想到从点1和点n分别求最短路,然后枚举点找出哪些点是相遇花费时间最少的.但是这题边太多了,假设一个完全图里有x个点,那边就有x*(x-1)/2条了,必须化简其边.一个可行的办法是给每个完全图增加两个点,分别为入点和出点,入点向其中的点…

Can you answer these queries? Time Limit: 1 Sec  Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5195 Description A lot of battleships of evil are arranged in a line before the battle. Our commander decides to use our secret weapo…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4190 Distributing Ballot Boxes Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1065    Accepted Submission(s): 536 Problem Description Today, bes…

Can you answer these queries? Time Limit:2000MS     Memory Limit:65768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4027 Description A lot of battleships of evil are arranged in a line before the battle. Our commander decides to use…