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

Posted by Brendan Ballon
Brendan Ballon
Courses Plus Student 2,728 Points

I am just generally confused with this, I haven't watch any Swift videos in about a month so I might be a little rusty

I am not great at math and like stated in the title, I most likely forgot some operators and such. Thanks for the help!

-Brendan

operators.swift 
var results: [Int] = []

for n in 1...100 {
    // Enter your code below

    // End code 
}

1 Answer

Saud Alfaris
Saud Alfaris
1,084 Points

It's simple, use the code bellow:

var results: [Int] = []
for n in 1...100 {
    // Enter your code below
    if (n % 2 == 1) && (n % 7 == 0) {
      results.append(n)
    }
    // End code 
}
Brendan Ballon
Brendan Ballon
Courses Plus Student 2,728 Points

could you just please explain: (n % 2 ==1)

Saud Alfaris
Saud Alfaris
1,084 Points

Math fact: If a number is odd you get a remainder of 1 when you divide it by 2, if a number was even you will get a remainder of 0.

(n % 2 == 1) checks if n is odd or not, the operator % gets the remainder.