' chapter 9 example program
' sum and average of n grades
' grades are from 0-100
dim sum    'this variable will store the sum of the n grades
dim avg    'this variable will store the average of the n grades
dim n as int   ' the number of grades to average

print "How many grades?"
input n
dim grade[n]  ' an array of n grades

 ' ---INPUT ---
for i=0 to n-1                 'get the inputs
    print "Enter grade ", i   ' notice that we indent in loops
    input grade[i]                'get the grades from the student
next

'--- PROCESS ---
' compute the sum and the average
for i=0 to n-1
    if grade[i] >=94 then
   	print grade[i], "=A"
    elseif grade[i]>=86 then
	print grade[i],"=B"
    elseif grade[i]>=78 then
	print grade[i], "=C"
    elseif grade[i]>=70 then
	print grade[i], "=D"
    else
	print grade[i], "=F"
    end if
    sum = sum + grade[i]   'notice we accumulate the sum
next
avg = sum/n

'--- OUTPUT ---
print "The average of your", 
print n, " grades is ", avg
if avg >=94 then
   	print avg, "=A"
elseif avg>=86 then
print avg,"=B"
elseif avg>=78 then
	print avg, "=C"
elseif avg>=70 then
	print avg, "=D"
else
	print avg, "=F"
end if

print "Press <Enter> to continue"
dim tmp ' a temporary variable
input tmp 'wait for the user to press enter