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iOS Object-Oriented Swift Value vs Reference Types Final Challenge

Riyaz Ahamed
PLUS
Riyaz Ahamed
Courses Plus Student 1,411 Points
Posted by Riyaz Ahamed
Riyaz Ahamed
Courses Plus Student 1,411 Points

how to solve this qn.?

my code doesn't work

Vehicle.swift 
class Vehicle {
    let wheels: Int
    let doors: Int

    // Designated initializer
    init(wheels:Int, doors:Int){

    }
}

class Car: Vehicle {
    // A car must default to 4 wheels and 4 doors
    init(){
      // call super.init
    }
}
William Li
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

where's your code? I don't see that you've written any code here, this is just a template provided by the code Challenge.