Simple Swift function return error

Question

I am converting some algorithm pseudo code to Swift and have the following function:

func max(a: [Int], b: Int) {

  var result = a[0]

  var i: Int

  for (i =          


        

Answer 1

You must Implement the return type like this

 func max(inout a: [Int], b: Int)-> Int {

 var result = a[0]
 var i: Int

 for (i = 1; i <= b; i++) {
  if (a[i] > result) {
      result = a[i]
  }
 }
 return result
}

Answer 2

The return type is missing in the function declaration:

func max(inout a: [Int], b: Int) -> Int {
                                 ^^^^^^

Without a return type, swift defaults to an empty tuple (), and that's what the error means: int is not convertible to an empty tuple.

Also note that your return statement is misplaced: it should go right before the last closing bracket

    }
    return result
}

and not

        return result
    }
}