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

Jørgen Norsted
Jørgen Norsted
iOS Development with Swift Techdegree Student 1,752 Points

Stuck in challenge 1 of 1 in Swift Collections and Control Flow

I do not know what to do here. I think some of the problem is that English is not my first language. I do not know what "a multiple by 7" means. But can anyone point me in the right direction. Where should I start?

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

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

    // End code 
}

3 Answers

Brandon Mahoney
Brandon Mahoney
iOS Development with Swift Techdegree Student 25,409 Points

So a multiple is a number that when divided by a given number will not have a remainder. For example 14 is a multiple of 7 because 14 divided by 7 is 0. You use the % sign find the remainder of two numbers.

Below n % 2 will find if it is odd or even and n % 7 will find if it is a multiple of 7.

var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if n % 2 != 0 && n % 7 == 0 {
      results.append(n)
    }
    // End code 
}
Sarah Hurtgen
Sarah Hurtgen
Treehouse Project Reviewer

Hi! I believe the task would be wanting you to multiply (times) a range of numbers by 7. For example, if the multiplier was 2, it would read: 2 * 7

Hopefully that helps point you in the right direction. If you need further help with this specific challenge, it would be great if you posted a direct link to it for us to be able to see the exact requirements.

Best luck! :)

Jørgen Norsted
Jørgen Norsted
iOS Development with Swift Techdegree Student 1,752 Points

Thank you both! There may be some problem with the language sometimes, but it helps to get it explained :)