Lab 2: Create in Linux/Unix using C/C++ a program to play tic-tac-toe. Overview Tic-tac-toe or Xs and Os is a paper-and-pencil game for two players who take turns marking the spaces in a three-by-three (or in general an nn ) grid with X or O. The player who succeeds in placing three (or n ) of their marks in a horizontal, vertical, or diagonal row is the winner. Instructions Write a computer program which takes its input (see size of the grid) from the command line and using shared memory the two opponents are played by two different processes. Notes - The grid size should be provided as command line argument. - The players will read the coordinates from the standard input (usually keyboard). - Whoever is creating the shared memory is responsible to print on regular basis the content of the grid (i.e. after each new step). - Whichever process wins the game will write that it's the winning process, while the other will write that it's the process who lost the game. In case of a draw, both process should write the outcome (see draw). - The processes should be different programs and should not be necessarily created using fork(). - If fork() is to be used for the implementation and the game will happen between the child and the parent process the maximum grade will be 9/10 (see rubric below). - System functions such as ftok(), shmget(), shmat(), shmdt() and shmctl() are encouraged to be considered to create and handle the shared memory between the processes