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iOS Swift 2.0 Collections and Control Flow Control Flow With Loops Working with Loops

Posted by George Yang
George Yang
1,700 Points

Don't understand what is wrong with this loop

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

// Enter your code below

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

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

// Enter your code below

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

1 Answer

Thivyan Aravindanathan
Thivyan Aravindanathan
7,946 Points
Thivyan Aravindanathan
Thivyan Aravindanathan
7,946 Points

Hey George,

There is nothing wrong with your loop, but the challenge expects you to write a postfix increment rather than a prefix increment.

so instead of 

++counter

try

counter++