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Chris Beal
iOS Development Techdegree Student 793 PointsConfused on multiple of 7, append the value to the results array provided.
would it be if n !even && multipleof7 ....
I am not sure how I spend the value to the results array provided? what does that mean exactly?
Do I need to do more code to find the multiples of 7?
var results: [Int] = []
for n in 1...100 {
// Enter your code below
if n !even && multipleof7 {
print("7")
}
// End code
}
2 Answers
Ghareisa Al-Kuwari
1,465 PointsThe question requires 3 main things, to find if the number is not even then to find if the number is a multiple of 7, lastly if both conditions are true we append the number to an array named results. Let's take that a bit by bit
1. If the number is not even: Using the remainder operator % we can find out if a number is even or odd by dividing it by 2, meaning if a number is even, when divided by 2 there will be no remainder, if it is odd there will be a remainder. So the not even part should be
!(n%2==0)
If the remainder of n divided by 2 is 0 then the number is even, but the question requires the number to be not even, so we add the not operator
2. If the number is a multiple of 7: Technically, a number that is a multiple of 7 should have zero remainder when divided by 7. So Taking the module operator %, if n is a multiple of 7 then remainder is 0.
n%7==0
3. Appending: Append the value as in add that value to the array and it is done by the append method, which always adds the element at the end of the array, so the solution overall is going to be
if( !(n%2==0) && n%7==0 ) {
results.append(n)
}
Chris Beal
iOS Development Techdegree Student 793 PointsthANKS!