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iOS

mohamed hassan
mohamed hassan
2,079 Points
Posted by mohamed hassan
mohamed hassan
2,079 Points

i cant solve the challenge i tried using the remainder operation but it is not going through i get error

swift_lint.swift:10:35: error: cannot assign to value: '&&' returns immutable value

For this challenge, we'd like to know in a range of values from 1 to 100, how many numbers are both odd, and a multiple of 7.

To start us off, I've written a for loop to iterate over the desired range of values and named the local constant n. Your job is to write an if statement inside the for loop to carry out the desired checks.

var results: [Int] = []

for n in 1...100 {

   if n % [ 2 ] != 0 && n % [ 7 ] = 0  {
   print ( results )
   }

}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

There's a couple of issues here but you've got most of that spot on. Good work!

First, remove the square brackets from around the 2 and the 7. Next, where you're checking if n is a multiple of 7 using the % operator, you want to compare to zero using double equals, not single. Change that to ==.

Lastly, you want to append() into the results array inside your if statement, not print. Use dot notation to chain .append() onto results and pass in n as the argument.

I hope that helps.

Steve.