Magic square 3x3 java code
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Not every square grid of numbers is a magic square, only when it satisfies this rule. This bonus can also be combined with optional bonus 1. Line 130 is a user defined modulo function, and 140 helps calculate the addends for the number that will go in the current position. The code is kind of ugly though and me formatting it on here isn't helping either. On line 25 and 26 we have a for loop to calculate the sum of numbers on the first row.

Here we go again, and hopefully I finally get it to format correctly. Since 15 is not equal to 6, the value of this condition is true. Obviously, lines 64-73 contain statements that calculate the sum of numbers on the second diagonal. This game is also sometimes called lights on. To find where to place the next number, move diagonally upwards to the right i. On lines 4-6, we declare a couple of variables. Strict as M import Control.

The only thing I cannot get is my numbers are suppose to switch each time it loops but it shows the same number each time it loops which basically make it an infinite loop. I can really only get away with this method since we're allowed to assume that each number is unique and each 1-9 digit is present, or else this wouldn't really work. If num exists in the array, return false. The constructor takes an single dimensional array of the numbers contained, evaluates them and then caches the results in the properties magical and potentiallyMagical, accessed through isMagical and canBeMagical. First time visitors of Daily Programmer please to learn everything about this subreddit. It can convert C delegates and lambdas to Java interfaces and anonymous inner classes and C ref parameters using Java generics.

Thanks for contributing an answer to Stack Overflow! It's unclear who first came up with a magic square. This means that the value of magic remains the same and the loop continues on. Provide details and share your research! Create 'actors' which live in 'worlds' to build games, simulations, and other graphical programs. Takes user input for the array import java. A magic square is an arrangement of unrepeated integer numbers in a square grid, where the sum of numbers in each row, column, and the main and secondary diagonals, all add up to the same number. First, you only need to verify the.

Write a function that, given a grid containing the numbers 1-9, determines whether it's a magic square. Grid E 8x8 : Magic Square found. If it does not exist in the array, return true. Grid G 4x4 : Potential Magic Square found, can be completed. Return the sum of columns if they are all equal else return -1 if they are not equal. Therefore, when this value is compared with the value of sum on line 33, the condition is false. When the break statement on line 35 is executed, the for loop stops, and the next cycle is not executed.

Optional bonus 2 Write another function that takes a grid whose bottom row is missing, so it only has the first 2 rows 6 values. If anyone wants me to explain what's happening just let me know. At any time, if the calculated row position becomes -1, it will wrap around to n-1. At the end of the nested loop, the contents of the square array is illustrated as below: On lines 25 and 26, the sum of the numbers in the first row is calculated. If they are, we can say that it is a magic square. The values in each row, column, and diagonal must add to 15. This is why we have the value tested on lines 40, 53, and 64, to ensure that no unnecessary calculations are performed.

Well, it is for comments only, to be read by us, programmers. Also, it can convert Java anonymous inner classes to C. This time however, we use the column index as the counter for the outer loop, and the row index as the counter for the inner loop. If you trace the next 2 cycles when j is 1 and j is 2 , you will find that the condition stays the same. This means that this line is not to be processed or executed. Therefore, to refer to each cell in a 2D array, we need 2 indices, one for the row, and one for the column. I tried to do the first bonus and I think my solution works for all NxN squares! Also, the if in the end is just wrong.

Next, we need to check the sum of numbers in each diagonal. Plan on doing more to practice! If the size is larger than 3, the square is also. Consequently, the statements on lines 34 and 35 are ignored. There is a story about a huge flood in China a long time ago. Moreover, it can produce helpful notes, warnings, and 'to do' comments. If such a move means you fall off the square, wrap around to the row or column on the opposite side.

Using the above magic square as an example, we can say that number 2 is on row 0 column 0, and number 3 is on row 2 column 1. In the nested for loop on lines 29-37, the sum of the numbers in the second and third row are calculated. The program below shows how we can determine whether a series of 9 numbers forms a magic square or not. The square told the people how big their sacrifice needed to be in order to save themselves. Try to rework your square. A cool application which lets you play Magic Square right on your computer. This type of program comes in handy for photographers, editors, web masters and network administrators, and other users who frequently need to organize long lists of files.

Magic squares have appeared here on before, in in 2012. So now, you also see the purpose of using the magic flag. If you scan through to the bottom of the program, you will notice that lines 16, 24, 28, 39, 52, 63, and 75 are also for comments only. Remember that an index in an array begins with 0. The numbers are usually but not always the first N 2 positive integers. These statements will calculate the sum of each column and compare it with the reference value using a similar nested loop. To learn more, see our.