You can design your program so that a certain player always goes first, or have that be picked randomly.
Computer's choice will be pseudo-random, using the C random number generator.
your program should display a welcome message and offer to print instructions.
Throughout the program, check for invalid input.
Upon the user's turn:
your program should prompt you for the item you wish to pick
You are free to come up with any sort of input scheme (1 for rock, 2 for paper, etc.).
Upon the computer's turn:
At the end of each round:
a score needs to be kept, so at the end of the third round, you can display the winner.
When the game is over, ask the user if they wish to play again.
If yes, the game will be played again (3 rounds)
If no, the program should exit