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iOS Swift 2.0 Collections and Control Flow Control Flow With Conditional Statements Working with Logical Operators

Posted by Nader Adam
Nader Adam
2,863 Points

what is the solution

var results: [Int] = []

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

// End code

}

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

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

    // End code 
}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

In this challenge you are to add to an array all numbers that are both odd and evenly divisible by seven. I'll post the code then explain it.

var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if (n % 2 != 0) && (n % 7 == 0) {
      results.append(n)
    }    
    // End code 
}

The for loops starts and runs through all numbers between 1 and 100. Each time it checks if the number is NOT evenly divisible by two. If it isn't evenly divisible by two (ie odd) it does a second check and asks if it's evenly divisible by 7. If both are true it appends that number to the array named "results".