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Hackerrank Exercise : Utopian Tree solved in Swift

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In this post, we have Swift 5.0 solution for Hackerrank exercise - Utopian Tree. We have find out the height of  Utopian Tree, which goes through 2 cycles of growth every year. Each spring, it doubles in height. Each summer, its height increases by 1 meter.

Full details of exercise link hackerrank.com/challenges/utopian-tree/problem

Here is the working solution:

    
    func utopianTree(n: Int) -> Int {
        var height = 0
        for cycle in 0...n {
            height = (cycle - 1) % 2 == 0 ? height * 2 : height + 1 
        }
        return height
    }



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