// Program Name: Grade Average
// Purpose: To avegerage the grades
// Author Name: Courtney Credle
// Class Name and Number: Program design and developement
   CIST1305
// Instructor Name: Todd Meadors
// Last date modified: 24-July-2017
Main Module() 
     Declare variables and constants
     DECLARE Real avg= 0.0
     DECLARE total=0.0
     DECLARE grades[1...4] of Integers //Use an array to store the grades
     DECLARE Integer i
     FOR i=0 to 4 //Use a looping structure to populate the array
     
        DISPLAY "Enter the "& (i+1) & " grade:"
        INPUT grades[i]

     End FOR
     
     FOR i=0 to 4 //Display each of the 4 numeric grades from the array on the screen using a looping structure
         DISPLAY "Grade "& (i+1) &" is "& grades[i]
     
     End FOR

         CALCULATE avg=total/4.00   //calculate average
         DISPLAY "The average is "& avg & "and Letter grade is "& returnGrade(avg)     //display average and grade letter
  
             // Thank the user and end the program
      DISPLAY"Thank you for using this program."
End Module()  //End of the main module

DECLARE String returnGrade(Real avg){ //function to determine the grade letter of the average
      DECLARE String grade="" //variable to hold the grade letter
     If avg>=90 && avg<=100 // check if average is in the range 90-100 inclusive and assign A to grade letter.
       grade="A"
   
     Else If avg>=80 && avg <=89 // check if average is in the range 80-89 inclusive and assign B to grade letter.
       grade="B"
    
     Else If avg>=70 && avg <=79 // check if average is in the range 70-79 inclusive and assign C to grade letter.
       grade="C"
  
     Else If avg>=60 && avg<=69 // check if average is in the range 60-69 inclusive and assign D to grade letter.
       grade="D"

     Else If(avg>=0 && avg<=59) //// check if average is in the range 0-59 inclusive and assign E to grade letter.
       grade="F"
    
     Else
      grade=" "

    End If
 
  
   RETURN grade
}