CS 172	
Pratice Problems


1.)	What is the output of the segment below and how many times does the loop get executed?

    int arr[10], i = 0;
    while (i < 4) {
    i = i + 1;
    arr[i] = i * i;
    cout << arr[i] << endl;}


2.)	Show the output from the printf:

    int j = 0;
    int a[10] = { 1, 2, 3, 4, 5, 6, 7, 8 };
    while (j < 9) 
    {   if (j > 4)
        {   cout << a[j] << endl;
            ++j;
        } 
        else    
            ++j;
     }            


3.) 	How many times does the following loop segment get executed and show the output each time:

    int n, m;
    n = 15;
    m = 20;
    while (n < m)
    {   ++n;
        m = m - 1;
        cout << n << " " << m << endl;
    }

 
4.)	An integer array is initialized with the following  exam grades: 88, 92, 77, 80.  Write a program that contains this array, 
	sums the array elements (grades), and calculates the average.  Print the sum and average 



5.)	Given the following initializing of the array word:

	char word[] = {'E','X','A','M'}

	Write a program to print the word EXAM.


6.) 	Bubble sort: Given the following list of six numbers use the bubble sort algorithm (by hand) to sort the list in 
	ascending order:


                    -40  89  17  -65  2  55