Write an m-file that determines the row and column indices for all non-zero elements in a matrix, x. row indices should be stored to the variable i, and column indices should be stored to the variable j. for the purpose of testing and grading your m-file: do not issue a clear command at the start of your m-file do not define the matrix x within your m-file. that vector should exist in the workspace prior to executing your m-file. do not display i and j. this will be done by the script the grader uses to test your m-file. variable names (x, i, and j) must be exactly as specified (lower case)

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Design a class tictactoe that: holds the following information about the game: two-dimensional array (3 by 3), and winner. add additional variables as needed. includes the functions to perform the various operations on objects. for example, function to print the board, getting the move, checking if move is valid, determining if there is a winner after each move. add additional operations as needed. includes constructor(s). write the functions of the class, and write a program that uses the class. the program should declare an object of type tictactoe. the program will create the board and store it in the array. the program will allow two players to play the tic-tac-toe game. after every valid move update the array, check if there is a winner. if there is no winner and no tie, then print the board again to continue.

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