This program works but I would like some suggestions as to how I can make it better. One is how to make it re-ask for the paycode after entering one in. Another is when the wrong paycode is entered how to make the program return to the begining and ask for the paycode again. Any suggestions will be greatly appreciated.

1) Create the main program file. At the top of this file, the following comment block
is required to receive full credit.
/*
Your Name
Your Class
Today’s Date
Programming Assignment #1
*/
After which, create a main function, with a return type of void and a parameter
list of type void.
2) Create a function and name it OutputHeader, which has a void return type and a
parameter list of void. Create a prototype for this function and put it at the
beginning of your program.
Inside of OutputHeader, use a series of printf statements to produce the following
output
Your Name
Your Class
Today’s Date
Programming Assignment #1
Call this function from your main function
3) Create a function and name it InputData, which has an int return type and a
parameter list of an array of type double.
Using a for loop, input 10 doubles from the keyboard and store them in the array
from the parameter list. Remember, to read in a type double, a format string of
“%Lf” must be used in the scanf statement. The function should keep a count of
the number of entries, and this value should be returned by the function.
4) Create a function and name it ShowData, which has a void return type, and a
parameter list of an array of type double and an integer. The integer is the length
of the array. Use a for loop to show the contents of the array. Show each index
and the associated value.
5) Create a function and name it FindAverage, which has a double return type, and a
parameter list of an array of type double and an integer. The integer is the length
of the array. Use a for loop to find the average of the data in the array. The
average should be returned by the function
6) Create a function and name it FindMinium, which has a double return type, and a
parameter list of an array of type double and an integer. The integer is the length
of the array. Use a for loop to find the minimum value stored in the array. The
minimum should be returned by the function.
7) Create a function and name it FindMaxium, which has a double return type, and a
parameter list of an array of type double and an integer. The integer is the length
of the array. Use a for loop to find the maximum value stored in the array. The
maximum should be returned by the function.
8) Create a function and name it FindVariance, which has a double return type, and a
parameter list of an array of type double and an integer. The integer is the length
of the array. Use a for loop to find the maximum value stored in the array. The
maximum should be returned by the function.
Variance is a statistical function, which contains several steps. First, the
difference between each data value and the average of all the data values is taken.
Next, this difference is squared to make a positive number. Then, each of these
squared values is summated. Finally, after the sum is complete, the total is
divided by the number of data points. This final value is the variance.
2 ) x (x
n
1 variance ∑ − =
The FindAverage function may be used to solve this section.
9) Create a function and name it FindStdDev, which has a double return type, and a
parameter list of an array of type double and an integer. The integer is the length
of the array.
At the beginning of the program, just after the #include<stdio.h>, and the
statement #include<math.h>. The math.h is the header to the C math routines
library, and contains many useful tools. For standard deviation, the square root
function must be used.
The square root command is:
StdDev=sqrt(Variance);
Standard Deviation is the square root of the Variance. The FindVariance function
may be used to solve for the Standard Deviation.
10) Create a function called Menu, which has a void parameter list and a void return
type.
The menu should look something like this:
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
Create a while loop that runs the menu until the ‘q’ character is
pressed. In this menu, however, a string is to be used.
Create some character array, for example, InputString, and then
use a scanf to read the user input.
Once this is done, take only the first character of the string
and use it to check which option from the menu.
For example:
char InputString[80];
char key=’0’;
scanf(“%s”,InputString);
key=InputString[0];
Use the menu routine to call each of the previous functions that
have been created. An if-then-else tree or a switch statement may
be used to call the functions.
After the function is called, print the result of the function to
the screen along with the name of the Menu Item
Call this function from your main function
Example Output:
Eric Becker
CSE 1311
September 18, 2006
Program Assignment 2
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
1
Please enter 10 doubles
10.0
1.0
1.45
-3.33
1.223
3.33
22.2
3.33
-22.23
12.3
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
2
The Array is
Array[0]=10
Array[1]=1
Array[2]=1.45
Array[3]=-3.33
Array[4]=1.223
Array[5]=3.33
Array[6]=22.2
Array[7]=3.33
Array[8]=-22.23
Array[9]=12.3
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
3
Average is 2.9273
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
4
Minimum is -22.23
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
5
Maximum is 22.2
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
6
Variance is 119.048
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit
7
StdDev is 10.9109
Menu
1-Input Data
2-Show Array
3-Find Average
4-Find Minimum
5-Find Maximum
6-Find Variance
7-Find Standard Deviation
q-quit