CS 201, Spring 2000


Assignment #11: 10 Points.

Due Date: Monday, 5/1/00.


(2)  1.	Exercise 5.8.

(1)  2.	Exercise 5.21.  Which string manipulation function in Figure
        5.29 performs the same function as mystery1()?

(3)  3. Write a program which displays a game of tic-tac-toe between
	two human players.  Store the game state in a 3x3 integer 
	array which represents the 9 squares in the game.  Initialize
	the array to all zeros to indicate an empty board.  Prompt 
	for Player 1 to enter a move using two integers, which are the 
	subscripts of an element of the array, and place a 1 in the 
	specified element and then print the game board as an array of
	3 rows and 3 columns.  Repeat for Player 2 by placing a 2 in the
	specified square.  Each move must be to an empty square.
	Alternate players until all squares are filled.  The program does 
	not need to determine if the game has been won or is a draw.  
	Use output formatting commands to line up the rows and columns.**

(4)  4.	Modify the Time class of Figure 6.5 to include a tick()
	member function which takes no arguments and increments
	the time stored in a Time object by one second.  The Time
	object should always contain a valid time value.  Modify the 
	driver program from Figure 6.5 to test the tick member
	function in a loop that prints the time in both military 
	and civilian formats during each iteration of the loop.
	Be sure to test the folowing cases: (a) incrementing to
	the next minute, (b) incrementing to the next hour, (c)
	incrementing to the next day (i.e. 11:59:59PM to 12:00:00AM).**


      **For full credit, turn in fully commented program listings,
	including your name and the problem number, and the output
	from test runs exactly as produced by the program.