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Average Program using an Array
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How do I code a C++ program that used an array to find an average of positive numbers. Then outputs the result
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Join Date: Aug 2005
Posts: 15,142
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sum them all up and divide by the size of the array. For example
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Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.
What is not clear to me is: does the array have only positive numbers or are you finding the average of only positive numbers?
If the first, then Ancient Dragon has the con
If the second, you'd need to pull out only the positive numbers and divide by their count.
Perhaps ...
int a[6] = {2,-3, 4, -5, 6, -7};
int b[6] = new int[];
loop through a, placing positive values in b
then ...
The sum is 2+4+6 = 12
The average is 12/3 = 4
If the first, then Ancient Dragon has the con
If the second, you'd need to pull out only the positive numbers and divide by their count.
Perhaps ...
int a[6] = {2,-3, 4, -5, 6, -7};
int b[6] = new int[];
loop through a, placing positive values in b
then ...
The sum is 2+4+6 = 12
The average is 12/3 = 4
Think about how you add up. Suppose I ask you to add the
number in the series 2,6,9. you don't go let me put the numbers into
an array. you simply keep a running total,
So in your case
start a total
total=0
then IF the number is >0 add to total
divide total by the number of >0 numbers (or 42 ;-)
Just because it is programming it doesn't mean that you can forget you kindergarden maths.
number in the series 2,6,9. you don't go let me put the numbers into
an array. you simply keep a running total,
So in your case
start a total
total=0
then IF the number is >0 add to total
divide total by the number of >0 numbers (or 42 ;-)
Just because it is programming it doesn't mean that you can forget you kindergarden maths.
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I would love to change the world, but they won't give me the source code
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