2nd task objective

Question

Not sure how to solve the second task of this objective. I tried computing the sum in myplayground and was able to get it to compile however, I think I'm using the wrong logic. Any advice would be great.

Thanks

while.swift

let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0

// Enter your code below

while sum < numbers.count {
    print(numbers[sum])
    sum++

Answer 1 · 2016-04-06T22:21:06Z

April 6, 2016 10:21pm

Hey Gregory,

You seem to have got just a bit off track here. The second task wants you to just increment the sum with the value of the array position during that iteration. So every time the loop runs, it pulls the next value in the array, and this value needs to be added to the sum of the previous ones.

So first off, you need to get rid of the print statement (the challenge doesn't want anything printed).

Second, instead of using sum for the loop, you will need to use counter as it was for the first task, and then increment the counter by 1 after each iteration instead of the sum.

Then, we are going to do some math. with the variable sum we are going to add the array number to the previous value of the sum variable. Which would look something like newValue = oldValue + newNumber.

Below is the complete code for Task 2. Have and look and let me know if it makes sense.

while counter < numbers.count {
  sum = sum + numbers[counter]
  counter++
}

Keep Coding! :)

Answer 2 · 2016-04-07T12:21:06Z

April 7, 2016 12:21pm

Jason,

Thank you for the reply and helping me with this objective. I do understand how you explained it and it makes sense. I think I confused myself with how this objective was worded. I'm a newbie, so I think I was making this task harder than what it should be. I have a lot to learn :)

Thanks for taking the time to explain this to me.

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Gregory Rankel

Gregory Rankel

2nd task objective

2 Answers

Jason Anders

Jason Anders

Gregory Rankel

Gregory Rankel