Do not use any array for this program, but keep the 9 square content variables as in the previous program.
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You will be modifying your 2 previous programs: tic-tac-toe and calculator code. Be sure to correct any errors or items noted on the programs or in the Gradebook.
1. For the tic-tac-toe program, you will create a loop in the main routine that will allow the users (assume 2) to play a full game of tic-tac-toe, alternating between X’s and O’s. [Note, you are not limited to a single loop in main.] Use the same 1-9 board from the previous version. You must force each user to specify an unoccupied square.
Write a function that can determine if there is a winner, or if the game is a draw (no winner, but all 9 squares have been selected). DO NOT use any array for this program, but keep the 9 square content variables as in the previous program.
When the game is over, use another new function to see if the users want to play again by answering either y or n (must force the user to provide a valid input and this input must be a char variable). If ‘y’ is selected then repeat the game, until a ‘n’ is selected following any game.
The output for this program should show 2 complete games prior to a user selecting to quit and you must demonstrate your square selection and game continuation error checking at some point during the games!
2. For the calculator program, you will only be performing a single mathematical operation at a time, similar to switch version of this program, but you must include a function that allows the user to specify they want to continue performing mathematical operations. Use a loop in main to permit multiple operations to be performed sequentially. Force the user to specify a correct value. This is nearly identical to the continuation functionality you built for the tic-tac-toe program.
The 2 operands specified for each operation (as 2 new ones will be needed for each new operation) will remain integer values.
You will also be adding an exponent function to the calculator (as a 7th operator), use the symbol ^ to specify exponentiation. Your function should calculate an exponent using only addition and multiplication with loops. DO NOT use the exp or other built-in exponent function, but write your own as specified.
Make sure your calculator output shows each operator including your new exponent operator, being executed as well as error checking for the continuation function and the division and modulus operators.
