import Foundation
import XCTest

func getMaxPairwiseProduct(_ numbers: [Int]) -> Int {
  var biggest = 0
  var secondBiggest = 0

  for num in numbers {
    if num > biggest {
      biggest = num
    }
  }

  for num in numbers {
    if num > secondBiggest && num != biggest {
      secondBiggest = num
    }
  }

  return biggest * secondBiggest
}


func printTimeElapsedWhenRunningCode(title:String, operation:()->()) {
  let startTime = CFAbsoluteTimeGetCurrent()
  operation()
  let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime
  print("Time elapsed for \(title): \(timeElapsed) seconds")
}

printTimeElapsedWhenRunningCode(title: "getMaxPairWiseProduct()") {
  let result = getMaxPairwiseProduct([1,2,3,4,5,6])
}