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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

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

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.