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

Maxence Roy
Maxence Roy
8,753 Points
Posted by Maxence Roy
Maxence Roy
8,753 Points

I'M trying this and it's not working, I can't figure out the solution.. 

for n in 1...100 {
    // Enter your code below
    if n != even {
        results += results[n]
    }

    // End code
}

[MOD: edited code block - srh]

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi Max,

You need to test if each number between 1 and 100 is both odd and a multiple of 7. Unfortunately, there's no method called even that returns a true/false response - that would be helpful! You test for 'oddness' by dividing by 2 and seeing if there's a remainder. If there is, the number was odd, else it was even. So, if n % 2 != 0 gives you a test of oddness, or a lack of evenness, whichever you prefer.

You'll then need to chain that (use &&) with a test of n % 7 == 0. If both pass, append n to the results array with results.append(n).

I hope that helps - let me know how you get on.

Steve.