a) what should end up in

print()

b) should this utilize the && logical operator type

Question

I'm not sure what this should look like to be completely honest. A little lost.
```operators.swift
var results: [Int] = [7,21,35,49,63,77,91]
for n in 1...100 {
    // Enter your code below
    if n != [2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,
    84,86,88,90,92,94,96,98,100] && n = [7,21,35,49,63,77,91] {
    print("[n] is a multiple of seven")
    }
    // End code 
}
```

Sam Donald · Accepted Answer

Ok, first results should be an empty array
swift
var results: [Int] = []

When n is both an odd number and a multiple of 7 we are going to add it to results.
Remainder(%)
This operator returns the "remainder" left over when one operand is divided by a second. 
So when we want to check if n is odd, we would want to know if the remainder was not(!) 0.
swift
n % 2 != 0

To check if n is a multiple of seven we just replace 2 with 7 and lose the not checker.
swift
n % 7 == 0

Putting it all together we check for oddness and multiple(ness?) then add n to results if it passes.
swift
if n % 2 != 0 && n % 7 == 0 {
    results.append(n)
}

print()
You don't need it. All they want you to do is add(append) n to results.

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charles wilson

charles wilson

a) what should end up in print() b) should this utilize the && logical operator type

1 Answer

Sam Donald

Sam Donald

Remainder(%)

print()

charles wilson

charles wilson