def findMin(list: List[Int]) = {
    def findMin_h(list: List[Int], min: Int): Int = {
        list match{
            Nil => throw new Exception("chuju")
            h::Nil => min
            h::t => if(h < min)
                    findMin(t, h)
                else
                    findMin(t, min)
        }

    }
    findMin_h(list.tail, list.head)
}