Feb 15 2006; cpsc 220

Warm up exercises:

how many times is the statement x = x+1 executed in the following
x = 0; 
for( j = 0; j < 10; j++) 

	for (i = 0; i < 5; i ++)

		x = x + 1;

cout << "x = " << x << endl;

Suppose a file contains all integers in proper form.

Write a loop that computes the sum of all the integers in the file.
Write a loop that computes that stops computing the sum, and taking input from the file, when the sum exceeds 100. If the sum never exceeds 100 then it determines the sum of all the integers in the file.
Write a loop that reads from and computes the sum of the input values stopping when either (or both) of the following conditions is met
- the sum exceeds 100
- there is no more data in the file
Write a loop that reads from and computes the sum of the input values stopping when either (or both) of the following conditions is met
- the sum exceeds 100
- there is no more data in the file
- a negative value is input.

Chapter 7 - Functions

Lets take a look at the use of functions in some of the labs you've done.

General issues involving functions

void functions
parameters
flow of control
scope

----------------------------------------

What are the values stored in x, y, and z after the following is executed
x = 10;  
y = 20;

ExamPrep (x, y);
where ExamPrep is defined as
int ExamPrep( int p1, int & p2)
{
	if (p2 = p1)
		return p2;
	else if (p2 > p1)
		return p1;

	else	

		return p1 * p2;
}

Write a function that reads from and returns the sum of the input values stopping when either (or both) of the following conditions is met