今天讨论的是称球问题. No.3 13 balls problem You are given 13 balls. The odd ball may be either heavier or lighter. Find out the odd ball in 3 weightings. 分析与解答: 看到这道题,就想起来高中时候数学老师的一句话:“真正难的题不是那些很长的题,而是那些就几句话的题!!!”现在想想真是良训啊.又想到很多老师的话,感觉到失去方显弥足珍贵的名言,不禁唏嘘啊…… 有人认为…

Description 一个图,对一个点进行操作会改变这个点及其相邻的点的状态,问全部变成黑色至少需要几次.数据保证有解. Sol Meet in middle. 我一开始写个高斯消元,发现有两个点过不去,原因是没有处理好自由元,应该在DFS的时候回带所有解,然后就弃疗了. 然后发现这个其实可以暴力,就是 Meet in middle... 先把前一半暴力枚举存到 map 里,后一半再枚举,从 map 中找补集. 复杂度 \(O(2^{13})\) Code /*****************…

比赛链接: http://acm.hust.edu.cn/vjudge/contest/view.action?cid=44903#overview 题目来源: 2011 Asia ChengDu Regional Contest Wine93有话说: 爆0, oh-year!   ID Origin Title   13 / 118 Problem A HDU 4111 Alice and Bob 137 / 358 Problem B HDU 4112 Break the Chocolate…

1 Run command “New-SPConfigurationDatabase" Feature Description: error message popup after run function “New-SPConfigurationDatabase". 1.1 Category Code error 1.2 Exception and Phenomena pipeline issue:The pipeline has been stopped New-SPConfigu…

[http://sharepointdeal.wordpress.com/2013/03/13/sharepoint-2013-workflow-manager-1-0-offline-download/] Problem: There is no direct download to the Workflow manager and required components that need to Install and Configure Workflow Manager 1.o with…

The Same Game Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 4585   Accepted: 1699 Description The game named "Same" is a single person game played on a 10 \Theta 15 board. Each square contains a ball colored red (R), green (G), or…

Trash Time limit: 1.0 secondMemory limit: 64 MB You were just hired as CEO of the local junkyard.One of your jobs is dealing with the incoming trash and sorting it for recycling.The trash comes every day in N containers and each of these containers c…

Awesome Backup System Time limit: 2.0 secondMemory limit: 64 MB It is known that all people can be divided into two groups: those who have never lost important data and those who regularly perform data backups. Kirill is on his way from the first gro…

        ID Origin Title   20 / 60 Problem A HDU 3507 Print Article   13 / 19 Problem B HDU 2829 Lawrence   1 / 5 Problem C HDU 4528 小明系列故事――捉迷藏   5 / 6 Problem D HDU 1300 Pearls   0 / 42 Problem E HDU 2993 MAX Average Problem   1 / 20 Problem F UVALi…

        ID Origin Title   111 / 423 Problem A LightOJ 1370 Bi-shoe and Phi-shoe   21 / 74 Problem B LightOJ 1356 Prime Independence   61 / 332 Problem C LightOJ 1341 Aladdin and the Flying Carpet   54 / 82 Problem D LightOJ 1336 Sigma Function   66 /…

        ID Origin Title   34 / 81 Problem A POJ 3436 ACM Computer Factory   92 / 195 Problem B POJ 3281 Dining   55 / 148 Problem C POJ 1087 A Plug for UNIX   59 / 111 Problem D POJ 2195 Going Home   44 / 132 Problem E POJ 2516 Minimum Cost   35 / 72…

1 Run command “New-SPConfigurationDatabase" Feature Description: error message popup after run function “New-SPConfigurationDatabase". 1.1 Category Code error 1.2 Exception and Phenomena pipeline issue:The pipeline has been stopped New-SPConfigu…

该文章整理自 网易博客 http://blog.163.com/net_worm/blog/static/12770241920101831312381/ 转载请注明出处 WebKit是QT4新整合的第三方构件.按照惯例动手分析之前,先了解大概 WebKit由三个模块组成:JavaScriptCore.WebCore 和 WebKit WebKit作为了整个项目的名称.其目录结构:(未校准) WebCore: ¨Page与外框相关的内容(Frame,Page,History,Focus,Wind…

A. Harmonic Matrix Counter (3/19) B. Binary Tree (1/14) C. Asa's Chess Problem (21/65) [ Problem ] 给出一个棋盘格,里面的格子两两分为一组,组内的格子可以交换位置, 同一组格子一定在同一行或者同一列,每个格子为白色或者黑色, 现在要求每行中黑色的格子数量在rL到rR之间,每列中黑色的格子数量在cL到cR之间, 现在要求求出最少的交换次数使得要求被满足,不能满足则输出-1 [ Solution ] 我…

并不是很正规的.每个人自愿参与自愿退出,马哥找题(马哥超nice么么哒). 放假第一周与放假结束前一周 2015-01-26 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=68304#overview password: scau0126     ID Origin Title   13 / 29 Problem A CodeChef SUBGCD Subarray GCD   8 / 50 Problem B CodeChef SU…

Source: PAT A1129 Recommendation System (25 分) Description: Recommendation system predicts the preference that a user would give to an item. Now you are asked to program a very simple recommendation system that rates the user's preference by the numb…

ID Origin Title   4 / 12 Problem A Gym 100589A Queries on the Tree 14 / 41 Problem B Gym 100589B Count Palindromes 18 / 19 Problem C Gym 100589C Find P'th Number   0 / 4 Problem D Gym 100589D Desolation of Smaug   0 / 4 Problem E Gym 100589E Count Di…

Levmar:Levenberg-Marquardt非线性最小二乘算法 eryar@163.com Abstract. Levmar is GPL native ANSI C implementations of the Levenberg-Marquardt optimization algorithm.The blog focus on the compilation of levmar on Windows with Visual Studio. Key Words. Levmar, C,…

Problem A: Colorful Balls Description Snuke放了N个一排彩色的球.从左起第i个球的颜色是ci重量是wi她可以通过执行两种操作对这些球重新排序操作1:选择两个相同颜色的球,假如他们的重量和小于等于X,交换两个球的位置操作2:选择两个不同颜色的球,假如他们的重量和小于等于Y,交换两个球的位置求我们总共可以得到多少种 不同的颜色序列?对答案取109+7的模 Input N X Yc1 w1. . .cN wN Output 输出答案. Sample Input…

Work out the first ten digits of the sum of the following one-hundred 50-digit numbers. 371072875339021027987979982208375902465101357402504637693767749000971264812489697007805041701826053874324986199524741059474233309513058123726617309629919422133635…

代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 7.13 \n\n'); ba…

代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 6.13 \n\n'); ba…

1. 代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 5.13 \n\n');…

代码: %% ---------------------------------------------------------------------------- %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 4.13 \n\n'); banner…

Problem 13 # Problem_13 """ Work out the first ten digits of the sum of the following one-hundred 50-digit numbers. 找出一下100个五十位数的数字的和的前十位数 37107287533902102798797998220837590246510135740250 46376937677490009712648124896970078050417018260538…

代码: %% ------------------------------------------------------------------------ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 8.13 \n\n'); banner();…

description: Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000 For example, two is written as II in Roman numeral, just two one's added together. Twelve is written as,…

solving the problem of overfitting:regularization 发生的在linear regression上面的overfitting问题 发生在logistic regression上面的overfitting 怎么解决overfitting regularization: cost function of linear regression parameters小的话,这样hypothesis就会变得简单,这样就不会overfitting 一般不会对θ0进…

Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000 For example, two is written as II in Roman numeral, just two one's added together. Twelve is written as, XII, which i…

这是hbase 从0.9.x升级到1.x后HMaster与HRegionServer端口冲突问题 在hbase升级到1.0.0版本后,默认端口做了改动.其中16020端口是hmaster服务和hregionserver服务各自使用的默认端口,导致端口冲突. 官方文档相关信息如下  The HMaster server controls the HBase cluster. You can start up to 9 backup HMaster servers, which makes 10 t…