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Swift MCQs

If the following code executed what can be problem?

import UIKit

func MinMax(array: [Int]) -> (min: Int, max: Int)

{

            var min = array[0];

            var max = array[0];

            for val in array[1..<array.count] {

            if val< min { min = val }

            else if val> max { max = val }

            }

            return (min, max)

}

Function has no problem

min and max variables were re-defined inside the function

min and max variables should be defined as optional variables

array.count should be placed with array.count()

Answer

Correct Answer: min and max variables should be defined as optional variables

Explanation:

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