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iOS Swift 2.0 Collections and Control Flow Control Flow With Conditional Statements Working with Logical Operators

Fawad Mohamed
Fawad Mohamed
2,100 Points

Regarding Challenge in Swift Collections and Control Flow

In Collection and Control Flow section, I have been given a challenge to perform

which is to find the odd numbers and also multiple by 7 and to append the result in the array.

My way of performing this code is below, I executed in playground and found the result seems correct. But code challenge is not accepting my answer. Rather i copied a code from web which is second set of code. But it was accepted. Please kindly explain what am i missing here?

My code:

var results: [Int] = []

for n in 1...100 { // Enter your code below if n % 7 == 0 { results.append(n) } print(results) // End code }

This code copied from the web and pasted it.

var results1: [Int] = []

for n in 1...100 { // Enter your code below if n % 2 == 1 && n % 7 == 0 { results1.append(n) } // End code }

1 Answer

You also need to append all the odd numbers that are also multiples of seven in that range to your results array.

In order to do that, we need to use the 'AND' operator (&&) in the if statement. So the code would look something like:

var results: [Int] = []

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

And then you print the results array using:

for index in 0..<results.count{
    print(results[index])
}
alexander88
alexander88
10,824 Points

I believe this particular question wants only odd answers, so it should be

2 != 0

on the second line of code.