c programming homework

Reference book "Introduction to Data Compression (4th edition)" Page 303, given the symbol set A={A1,A2,A3,A4}, to find the first-order entropy under the condition:(a) P (A1) =p (A2) =p (A3) =p (A4) =1/4(b) p (A1) =1/2, P (A2) =1/4, P (A3) =p (A4) =1/8(c) p (A1) =0.505, P (A2) =1/4, P (A3) =1/4, P (A4) =0.12Solution:because: Entropy H =-pi * Log (PI) (i from 1 to M),Then there are:(a) H = 4*1/4* (-log2 (1/4))= 2 (bit).(b) H=-1/2LOG21/2 -1/4*LOG21/4 -2*1/8*LOG21/8=1.75 (BIT).(c) h=-0.505*log20.50

1, Title: Write a program, this program receives multiple numbers from the command line, summed after the output results.2, program design idea: Because the command line parameters are string type, so to convert the string type to Integer, and then the number of simple plus. Sum is implemented using a for loop.3. SOURCE program://Receive multiple numbers from the command line and then output the result after summing.20153291 Feng Yichenpublic class Sumresult {public static void Main (string[] ar

Ask A or a and C to end the element li = [' Alix ', ' aric ', ' Alix ', ' tonc ', ' rain ']dic = {' K1 ': ' Alix ', ' K2 ': ' Aric ', ' K3 ': ' Alix ', ' K4 ': ' Tony ', ' K5 ': ' Rain '}for i in li: u = I.lstrip () w = u.find (' A ', 0,1) q = U.find (' A ', 0,1) e = U.find (' C ', 2,4) if w==0 or q==0 or e==3: print (u) w = dic.values () for z in w: u = Z.lstrip () w = u.find (' A ', 0,1) q = U.find (' A ', 0, 1) e = U.find (' C ', 2,4) if w==0 or q==0 or e=

. After this step, the machine will not have much problem in the learning process of the function, we must understand the function and the specific format. It is worth emphasizing that in the process of writing loops, be sure to understand the conditions of the cycle. 2. For a knowledge point, should immediately make up the corresponding program, sometimes there may be grammatical errors, encountered a better way can also try, many times you think of how the code is written and you really write

This problem thought for a long time, always feel too much state, too many situations, with DP at all do not know how to writeRead the online problem-solving report, said to use a pressure DP, that is, Dp[i] record the minimum number of points to complete which jobs, and then the recursive formula is: Dp[i]=min (Dp[i],max (dp[i-(1Sum[i] is the time it took to get to that state, Cost[j] indicates the time to spend on the J job, Dead[j] represents the deadline of the J jobBecause the state of I is

that the program ape is not so tired, not as people imagine, but in the person or thing I know, the program ape is a relatively tired, Total overtime work, but there is no way, their choice of the road on their knees to go down, there is no room for regret.From the initial small yards of farmers, slowly grow into a management level or Advanced Program Ape, that is a long process, after work, regardless of where the starting point, can not be relieved to accept the present conditions, I believe

, make the thinking feedback of Hamburg, this chapter I think very interesting, also very practical, Zou greatly psychology also has very deep research.--This chapter at the beginning I do not understand why can not face the essence of the lack of feedback to the collaborators, Jane read this chapter I understand the communication between the collaborators of the wisdom, spend the same money, bought 4 book feeling ~ ~The fifth chapter, 5.3.3, waterfall model of various variants, of which sub-wat

) {sum=j* -; } Else if(k==1) {sum=j* -+8; } Else if(k==2) {sum=j* -+ -*0.95; } Else if(k==3) {sum= (J-1)* -+ -*0.8; } Else if(k==4) {sum=j* -+ +*0.8; } cout"Best Available rate for:"Endl; return 0;}4, Experimental results5, experimental experienceBecause of the purchase of a batch of books so 5 of the situation directly by discount to buy can, in fact, the topic looks more complicated actually, but because of the various numbers of book prices, so careful analysis of the very simple,

) - if(! ((IGT;GT;J) 1)) $ { $ intnext=i| (1j); - intfinish=nodes[i].time+Tasks[j].need; - intPenalty=max (0, finish-tasks[j].deadline); thepenalty+=nodes[i].penalty; - if(penaltynodes[next].penalty)Wuyi { theNodes[next].time=finish; -nodes[next].penalty=penalty; WuNodes[next].cur=J; -Nodes[next].pre=i; About } $

Python s12 Day3 notes and homework, s12day31. Set Old_dict = {"#1": {'hostname': 'c1', 'cpu _ count': 2, 'mem _ capicity ': 16}, "#2 ": {'hostname': 'c1', 'cpu _ count': 2, 'mem _ capicity ': 16}, "#3": {'hostname': 'c1 ', 'cpu _ count': 2, 'mem _ capicity ': 16} new_dict = {"#1": {'hostname': 'c1', 'cpu _ count ': 2, 'mem _ capicity ': 32}, "#3": {'hostname': 'c1', 'cpu _ count': 2, 'mem _ capicity ': 16}, "#4": {'hostname': 'c1', 'cpu _ count': 2, '

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#include #include #include using namespace Std;Your code'll is hereClass Land{PublicLand (): Price_ (0) {}Explicit Land (int. price);Calculate how much Feng Gor can earn from the landVirtual Double Calmoney () = 0;ProtectedPrice of unit areaint price_;};Class Square:public Land{PublicSquare (double len, int price);Double Calmoney ();PrivateLength of side of a squareDouble Len_;};Class Circle:public Land{PublicCircle (double radius, int price);Double Calmoney ();PrivateLength of radius of a circl

date for tomorrow is%4d-%02d-%02d. \ n", Year,month,day); } } Else{printf ("Date Error, please close the program and re-enter. \ n"); } } Else if(month==2) { if(year%4==0year% -!=0|| year% -==0) { if(day>0day -) { Day=day+1; printf ("the date for tomorrow is%4d-%02d-%02d. \ n", Year,month,day); } Else if(day== in) { Day=1, month=month+1; if(month A) {printf ("the date for tomorrow is%4d-%02d-%02d. \ n", Year,month,day); }

Creating a multilevel directoryCP ABC A/B/C Copy the ABC file to the a/b/c directory cp-r copy DirectoryRM Delete File Rm-f Force Delete Rm-r Deleting a directory MV ABC a/b/c move file ABC (cut) to a/b/c folderMV ABC def renames the file ABC to defCat Display file Cat-n Displays the line number when the file is displayedMore ABC read file ABCFile Display Type5. File Lookup and environment variablesDeclare ABC to create a variable called ABC= assigned valueecho $ABC Read varia

Console.Write ("Please enter the length of the array:"); int k = Int. Parse (Console.ReadLine ()); int[] arr1 = new Int[k]; Console.Write ("array contains values in sequence:"); for (int i = 0; i After-class homework 07--binary method find algorithm code

just auxiliary tools and practical technical means, but an important part of modern educational theories that have a comprehensive and far-reaching impact, it is a positive force to promote the reform of the education system. 2. What is the teaching mode? The word "pattern" is a Chinese Noun of the English model. The model is also translated into "model", "paradigm", and "typical. It generally refers to the logic framework of the object to be studied. It is an operable knowledge system between

NTU-Coursera ml: HomeWork 1 Q15-20Question15 The training data format is as follows: The input has four dimensions, and the output is {-1, + 1 }. There are a total of 400 data records. The question requires that the weight vector element be initialized to 0, and then "Naive Cycle" is used to traverse the training set. When the iteration is stopped, the weight vector is updated several times. The so-called "Naive Cycle" means that after an error i

the core of the question and summarize the core and solutions that have been designed for it, these actions are the text (image) data that must be presented when a question is asked. • Correctly state the problemFinally, the core issues and related solutions are presented in a correct statement. The words "correct" are important, it affects the number of people who may be involved in answering the question, the possibility that the participant understands the question, and the mood of the respo

It has been nearly two weeks since the start of school. In the past half month, there were very few other things except the paper. I thought that the teacher would give some constructive comments to the paper after the school started, and then I made some modifications, but I was disappointed. They have hardly read our papers, let alone any comments. During the flicker, I changed the paper format and printed the paper. After three or four days, I finally waited for the paper to be sent out. Alth

Address: HDU 1074 This question has been saved for a long time... I haven't written it all the time .. Simple pressure DP. In particular, the structure array is required for DP. For details, see the kuangbin template .. Portal The Code is as follows: #include HDU 1074 doing homework (pressure DP)