Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Collections and Control Flow Control Flow With Conditional Statements Working With Logical Operators

Denis Lvovich
Denis Lvovich
462 Points
Posted by Denis Lvovich
Denis Lvovich
462 Points

Why is my answer not correct?

This code works perfect in the playground, but the system does not accept it.

operators.swift 
var results: [Int] = []

for n in 1...100 {
    // Enter your code below

    if ((n % 2) == 0) && ((n % 7) == 0) {

        results.append(n)
    }

    // End code 
}

1 Answer

Matthew Long
Matthew Long
28,407 Points
Matthew Long
Matthew Long
28,407 Points

What you did is incorrect because it asked you to check for odd values not even values. n % 2 == 0 checks for all even values. The challenge wants n % 2 != 0 which would be the odd values.

var results: [Int] = []

for n in 1...100 {
  if (n % 7 == 0) && (n % 2 != 0) {
    results.append(n)
  }
}