crc任意位生成多項式 任意位運算 自適應算法 循環冗余校驗碼(CRC，Cyclic Redundancy Code)是采用多項式的 編碼方式，這種方法把要發送的數據看成是一個多項式的系數 ，數據為bn-1bn-2…b1b0 (其中為0或1)，則其對應的多項式為： bn-1Xn-1+bn-2Xn-2+…+b１X+b０ 例如：數據“10010101”可以寫為多項式 X７+X４+X２+1。 循環冗余校驗CRC 循環冗余校驗方法的原理如下： (1) 設要發送的數據對應的多項式為P(x)。 (2) 發送方和接收方約定一個生成多項式G(x)，設該生成多項式 的最高次冪為r。 (3) 在數據塊的末尾添加r個0，則其相對應的多項式為M(x)=XrP(x) 。(左移r位) (4) 用M(x)除以G(x)，獲得商Q(x)和余式R(x)，則 M(x)=Q(x) ×G(x)+R(x)。 (5) 令T(x)=M(x)+R(x)，采用模2運算，T(x)所對應的數據是在原數 據塊的末尾加上余式所對應的數據得到的。 (6) 發送T(x)所對應的數據。 (7) 設接收端接收到的數據對應的多項式為T’(x)，將T’(x)除以G(x) ，若余式為0，則認為沒有錯誤，否則認為有錯
上傳時間： 2014-01-16
上傳用戶：hphh
acm HDOJ 1051WoodenSticks Description: There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking machine in one by one fashion. It needs some time, called setup time, for the machine to prepare processing a stick. The setup times are associated with cleaning operations and changing tools and shapes in the machine. The setup times of the woodworking machine are given as follows: (a) The setup time for the first wooden stick is 1 minute. (b) Right after processing a stick of length l and weight w , the machine will need no setup time for a stick of length l and weight w if l<=l and w<=w . Otherwise, it will need 1 minute for setup.
標簽： WoodenSticks Description length wooden
上傳時間： 2014-03-08
上傳用戶：netwolf
Input The first line of the input contains a single integer T (1 <= T <= 20), the number of test cases. Then T cases follow. The first line of each case contains N, and the second line contains N integers giving the time for each people to cross the river. Each case is preceded by a blank line. There won t be more than 1000 people and nobody takes more than 100 seconds to cross. Output For each test case, print a line containing the total number of seconds required for all the N people to cross the river. Sample Input 1 4 1 2 5 10 Sample Output 17
標簽： the contains integer number
上傳時間： 2015-10-27
上傳用戶：plsee
The functionality is to be designated the corresponding year reign France Thus the year, which was the year of the zodiac. But can be designated a specific date date of the lunar calendar. Author Note : I used to do this as a commercial product development PDA calendar procedures in recent transplant PC, ... software categories : algorithm related paper from the shrimp off FO
標簽： year functionality corresponding designated
上傳時間： 2014-05-28
上傳用戶：chenxichenyue
This script was designed as a stand alone script which can be easily intergrate into any existing website as it is,but if you want to intergrate it into a site which uses a content management format, then some alterations will have to be done for it to work properly. Remember this is a project and I am constantly working to improve it, so I can t guarantee that it will work for everyones needs, but dammmmd close.
標簽： script intergrate designed existing
上傳時間： 2015-11-29
上傳用戶：Ants
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. This document describes the methods of filtering reconstructed blocks in an H.264 CODEC. Note that the H.264 draft standard is not yet finalised and so readers are encouraged to refer to the latest version of the standard.
標簽： finalising standard Joint ITU-T
上傳時間： 2015-12-08
上傳用戶：fanboynet
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. This document describes the transform and quantization processes defined, or implied, by the standard.
標簽： finalising standard Joint ITU-T
上傳時間： 2015-12-08
上傳用戶：hongmo
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1,2] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. This document describes the methods of predicting intra-coded macroblocks in an H.264 CODEC.
標簽： finalising standard Joint ITU-T
上傳時間： 2013-12-28
上傳用戶：guanliya
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. The standard specifies two types of entropy coding: Context-based Adaptive Binary Arithmetic Coding (CABAC) and Variable-Length Coding (VLC). This document provides a short introduction to CABAC. Familiarity with the concept of Arithmetic Coding is assumed.
標簽： finalising standard Joint ITU-T
上傳時間： 2015-12-08
上傳用戶：561596
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. This document introduces the concepts of Switching P and I slices, part of the Extended Profile of H.264.
標簽： finalising standard Joint ITU-T
上傳時間： 2013-11-30
上傳用戶：kbnswdifs
