Get Most Rect

struct Point{
    var x : Int
    var y : Int
    init(_ x : Int, _ y : Int){
        self.x = x
        self.y = y
    }
}


func getRect(_ arr:[Point] ,  _ center: Point) -> (Int, Int){ //width, height
    var leftDiff = 0
    var rightDiff = 0
    var topDiff = 0
    var bottomDiff = 0
    for p in arr {
        if p.x > center.x {
            rightDiff = max(rightDiff, p.x - center.x)
        }else{
            leftDiff = max(rightDiff, center.x - p.x)
        }
        if p.y > center.y {
            topDiff = max(topDiff, p.y - center.y)
        }else{
            bottomDiff = max(bottomDiff, center.y - p.y)
        }
    }
    return (max(rightDiff, leftDiff) * 2 , max(topDiff, bottomDiff) * 2 )
}


let p1 = Point(0 , 0)
let p2 = Point(0 , 1)
let arr = [p1,p2]
let center = Point(1 , 1)

print(getRect(arr, center))