Swift Array interview questions

ArrayInterview.swift

func removeDuplicate(_ list : [Int]) -> Array<Int>{
var result = [Int]()
var previous = list[0]
result.append(previous)
for i in 1 ..< list.count {
let check = list[i]
if previous != check{
result.append(check)
}
previous = check
}
return result
}


func largestSmallest(_ list : [Int]){
  var larget = 0
  var smallest  = 0
  for value in list{
    if value > larget {
      larget = value
    }
  if  value < smallest {
        smallest = value
  }
  }
  print("Largest Number is \(larget)")
  print("Smallest Number is \(smallest)")
}


func printPair(_ list : [Int], sum : Int){

    for i in 0 ..< list.count {
      let first = list[i]
      for j in i+1 ..< list.count {
        let second  = list [j]
        if ((first + second) == sum ){
          print ("\(i+1)- pair is \(first) , \(second) ")
        }
      }
    }

}

func Fib(_ number : Int ) -> Int{
    if number <= 1 {
        return 1
    }
    return Fib(number - 1) + Fib(number-2);
}


func factorial(_ num : Int) -> Double {
    //  var fact = 1
    if num <= 1 {
        return 1
    }
    return Double(num) * factorial(num-1)
}



print(factorial(11))

var listCheck = [1,2,3,4,5,8,7,6,4]
printPair(listCheck , sum : 7)
print (Fib(5))

//  largestSmallest(listCheck)
//listCheck.sort()
//print(removeDuplicate(listCheck))