What is wrong with this code for the Logical Operators code challenge in Swift 2.0

Question

Everything seems to be working properly in XCode so I'm not sure why it's giving me an error.
```logicalOperators.swift
var results: [Int] = []
for n in 1...100 {
    // Enter your code below
    var multiplier = n * 7
    var remainder = n % 2
    if remainder != 0 && multiplier / n == 7{
        results.append(multiplier)
    }
    // End code
}
```

Martin Granger · Answer

I think you can simplify your code a little bit:
Check to see if the number is odd and is a multiple of 7 (meaning if you divided the number by 7 the remainder would be 0)
```swift
if (n % 2 != 0 && n % 7 == 0){
    results.append(n) //for the numbers that fulfill this criteria, append them to the results array.
    }
```

Xavian Ang · Answer

Hi @Martin Granger (https://teamtreehouse.com/mrtngranger) ,
I was wondering why my code wouldn't work and when comparing it to yours, I've noticed that it only differs at the part where I'm adding values to my results variable
This are my codes
```
var results: [Int] = []
for n in 1...100 {
    // Enter your code below
    if( n%2 != 0 && n%7 == 0 ){
        results += [n] // I've replaced this with results.append(n) and it worked
    }
    // End code
}
```
Was wondering why mine didn't work and yours could.
Any thoughts?

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Ethan Barrie

Ethan Barrie

What is wrong with this code for the Logical Operators code challenge in Swift 2.0

2 Answers

Martin Granger

Martin Granger

Xavian Ang

Xavian Ang

Charlotte S

Charlotte S

Barry Cherry

Barry Cherry