Practice questions and material listing for the 2nd exam

 Write a function with 4 parameters: an array, the size of an
 array, min, and max.  The function should determine the largest
 and smallest values in the array, and communicate these values back
 to the program through the parameters min and max.   The function
 should be a "void" function.

 Write JUST THE PROTOTYPE for a function that takes one integer 
 parameter and can modify the parameter in the calling function. 
 
 Write JUST THE PROTOTYPE for a function that takes one parameter, an
 array of doubles. You do not know the size of the array.

 Declare an array of five integers, and do NOT initialize it.

 Declare an array of five hundred doubles, all initialized to zero.

Declare an array of 1000 integers and do not initialize it. Then fill
the array with the multiples of five, starting at zero.

Given some function call inside a main(), write the prototype of the
called function. (Try this with your own programs).

Given a function call inside a main(), and a clear desired result for
the function, write the definition of the called function. (Try this
with your own programs).

Given a function prototype, write a call to the function from main().

Show the output and the return value for the following functions
definitions and calls:

  void p(int a, int b){
        int i,j;
        for(i=0; i<a; i++){
           for(j=0; j<b; j++)
              printf("o");
           printf("\n");
        }
   }

      for the call p(4,5):

  int p(int a, int b){
        int i,j, sum = 0;
        for(i=0; i<a; i++){
	   sum += i;
           for(j=0; j<b; j++){
              printf("%d ", sum);
	      sum += j;
           }   
        }
	return i;
   }

      for the call p(2,3):


  void p(int a){
        int i;
        for(i=0; i<a; i++){
           printf("o");
	   if (i % 4 == 0) printf("\n");
        }
   }

      for the call p(9):


Write a function with a nested for loop that prints, one asterisk at
a time, the shape:
*
**
***
****


 Write a complete program with a function that performs linear search
  on an array that it takes as a parameter. The program should declare
  an array, initialize it, call the search function on a key and the
  array, and print the index where the value is located. Style
  matters, as always!


Write a function named fact that takes a single integer n and 
returns n!. Example: 5! = 1 * 2 * 3 * 4 * 5

 
Write a function that fills an array of 500 integers with the
factorial series. Assume 0! is 1. So your array should start: 
1, 1, 2, 6, 24, ... NOTE: do NOT use your function from the previous
problem; use the index of the array to solve the problem.

 Briefly explain why it would be a bad idea to use the factorial
    function you wrote to fill an array with factorials. Assume your
    factorial function works correctly. Hint: think about how much
    work is being done.


///////////////////
SCOPE
Show what is printed by the following program.

int a(int n);
int b(int i, int c);
int f(int k);
int c;

int main(){

  int i = 1;
  c = 5;
  printf("%d\n", a(i));
  printf("%d\n", f(i));
  printf("%d\n", b(i, c));
  printf("%d\n", f(i));
  c = 6;
  printf("%d\n", a(i));
  printf("%d\n", b(i, 2));
  printf("%d\n", f(i));
  return 0;
}

int a(int i){
  int c = 3;
  i += c;
  return i;
}

int b(int j, int c){
  return j + c;
}

int f(int k){
  return 5 + c;
}

///////////////////

Above all, practice writing programs and program segments on
paper. Your book has lots of sample questions that are good
practice. Labs, homeworks, and your lecture notes are excellent
sources of test questions.

scope
global variables (blech)
pass-by-value, pass-by-reference: when and how to use
lint
linear search

Making graphics with either single or nested loops, like
***
***
***

function prototypes, definitions, and calls: identify in a
	  program, write examples
parameters: formal vs. actual (use and identify)
return values (including void): when and how to use
for loops
nested loops
ceil(), floor(), and abs()
assert()
file read and write with sentinels, EOF
arrays: declare, initialize, traverse (walk through)
arrays: find min, max, sum, frequency, etc.
an array name is an address
an address is a pointer
an array name is a pointer
passing arrays to functions (are they called by ref or value?)
address operator, how and when to use
dereference operator, how and when to use
pass-by-reference
pass-by-value
lab06 (restaurant)
project 1 (trucks)

AND everything from midterm 1:

+ - / % * ++ -- += -= = == < > <= >=
&& || ! !=
operator precedence
evaluating statements using operator precedence
C control structures
Parts of a computer/ stages of a C program/ shell commands / how they
relate
variable names

#include
#define

main
printf
scanf
int
float
char
double
type casting
true/false
if
else
switch/case/default
while
do while
for
return