Answer Posted /

Is This Answer Correct ?    Yes No

Post New Answer View All Answers

Please Help Members By Posting Answers For Below Questions

Project 2 - Magic Squares design2.txt - due 12/7 before 11:59 PM project2 - due 12/13, before 11:59 PM Orginally by Sue Evans Hit the space bar for next page The Objectives The purpose of this assignment is to give you practice with: recursion using command line arguments using the timing feature and file handling. The Background According to The Math Forum @ Drexel University, A Magic Square is an arrangement of the numbers 1 to n2 in an n x n matrix with each number occuring exactly once, and such that the sum of the entries of any row, any column, or any main diagonal is the same. It is not hard to show that this sum is n(n2 + 1)/2. The simplest magic square is the 1 x 1 magic square whose only entry is the number 1. 1 The next simplest is the 3 x 3 magic square. (8 + 1 + 6) or 3(32 + 1)/2 This is also just ONE of many examples for a 3 x 3 Magic Square!! This 3 x 3 square is definitely magic and satisfies the definition given above. There are 8 different arrangements of entries in a 3 x 3 matrix that fit the definition of a magic square. There are also magic squares of size 4 x 4, 5 x 5, etc. The Background - Continued For small n, say n <= 3, you could obviously sit down with pencil and paper and discover a magic square in a fairly short amount of time. Take a few minutes now and do that, remembering that each of the numbers, 1 through n2, appear only once in the square. Now try it for n = 4 ... Oh, there has to be a better way. :) Of course, the computer doesn't have a patience problem. It can solve the problem for us by using the brute force method. This means that the computer will accomplish its task by trying every single possible arrangement of the numbers in a square and check each of the resulting squares to see if it's a magic square. [6, 2, 7, 5, 4, 8, 3, 9, 1] [4, 2, 7, 6, 5, 8, 3, 9, 1] [7, 4, 2, 6, 5, 8, 3, 9, 1] ... The Task Your assignment will be to determine all of the magic squares when given an n, display permutations that match the magic squares to the screen AND write it to a file. You will only test when n == 3!!! But code it for n of ANY number!! It turns out that finding the magic squares for n >= 4 takes too long for us to run it on the shared machines (linux1, 2 & 3) Since if n == 1, the square is 1 (too easy!!) and since for n == 2 there is no answer!! Your program must come up with every possible arrangement (permutation) of numbers within the square. These are known as the permutations of that list of numbers. Each permutation needs to be checked to see if it has formed a magic square. Program Requirements Your program must: use command line arguments. At the command line the user must enter (in this order): the name of the executable file, n (which will ALWAYS be 3, but again could be run with other numbers) and the name of the output file in which to write the squares. use a recursive permute to give all of the permutations of the square. In other words, your function called "permute", must be a recursive function. So for each permutation, you should check to see if it is a magic square, display it and write it to the file write only the unique magic squares to the SCREEN and FILE. No duplicates allowed. HINT: Let your program produce duplicates first, then see how you can refrain from writing the duplicates. Then modify your code. use a list of size n2. The code for the recursive permute function will be much easier to write if you store the numbers in a list rather than a two-dimensional list (or array) of size n x n. How you print the data is not related. [6, 2, 7, 5, 4, 8, 3, 9, 1, ....] (size to n2) [4, 2, 7, 6, 5, 8, 3, 9, 1, ....] [7, 4, 2, 6, 5, 8, 3, 9, 1, ....] ... close any files that you have opened as soon as you have finished using them. Time how long your program takes to find the magic square and print that time at the end of the SAME file. Sample Run Here is a sample of output of this program. Please note that the sample output only shows what is expected from your program if the user is actually entering everything as instructed. This is not a test of the program at all, but just a sample for your clarification. 2 7 6 9 5 1 4 3 8 2 9 4 7 5 3 6 1 8 4 3 8 9 5 1 2 7 6 4 9 2 3 5 7 8 1 6 6 1 8 7 5 3 2 9 4 6 7 2 1 5 9 8 3 4 8 1 6 3 5 7 4 9 2 8 3 4 1 5 9 6 7 2 Total running time: 4.76 seconds.


business plan of eurekaforbes


Asha buys 16 Chocolates for rs 12 and 24 chocolates for rs 20, if she sold them 30 chocolates for rs 30 then what is the Gain/Loss percentage? Gain(700/19 %) Loss(700/19 %) Gain(500/19 %) Loss(500/19 %) If one person ate 100 grapes in 5 days and 6 more each day from starting, what was the no of grapes he ate on first day? 6 8 10 7 If seven men P, Q, R, S, T, U, V parked his car, P and Q something like that. 6 student J, K, L, M, N, O went for picnic in 2 batches, K and L have to go together, M and O do't go together, if O and L go in one batch then which of these combination will be wrong. Jmnp Jklo klop JKLO a boat can go upstream and down stream, if it goes 5/2 times of downstream at the speed of 6 kmph then what will be the speed of upstream? 15 KMPH 12 KMPH 10 KMPH 11 KMPH A, B, C, D, E sitting on a table, A sits 2 seat left from B and C sits 2 seat right from B then what will not be the combination ACDE


How would you convert a form into document?


How SQL Links determines if an MSSQL table can refreshed?


Hi, I'm working in vellore(tamilnadu) as postal assistant, I'm going to get married to a person who is in hosur(tamilnadu), Will I get marital transfer to that place? If yes, How much time will it take to get transfer from the date of applying? Kindly answer..


is there any training istitute for mcx and share trading in Ahmedabad ?




Q explain the following ? a. multiple wave campaign b. recurring campaign c. event triggered campaign


can any accountant forward format of daily or monthly mis format for accounts and finance dept!!


What is the differents between the Physics & technical Physics


Your roles and responsibilities and daily tasks? (As automation tester)


Why script error occur in between recording in qtp?


what is the advantages og idmt relay over magnetic relay??


What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?