Is it sorted or not programming exercise

Is it sorted programming exercise.

There ware once a wise mathematician. He very much liked his numbers sorted. And he needs your help:


Write a function that checks if an array of integers is sorted in ascending or descending order.

Example:
123 => True
132 => False
321 => True

Scroll down for the solution of this coding problem.

    public static bool isSorted(int[] x)
    {
        //the plan is to make one more array,
        //sort it and check if the elements of 
        //the two arrays are equal. So lets declare an array
        int[] a = new int[x.Length];
        for (int i = 0; i < a.Length; i++) {
            a[i] = x[i];
        }
        //We can sort it with the Array.Sort() function
        //Array.Sort() is sorting an array in an
        //ascending order.
        Array.Sort(a);
        bool ascending = true;
        bool descending = true;

        //now we will go through each item
        //in the array x and array a and check if the
        //two corresponding element are equal using
        //the != operator. This operator returns true
        //if the two items checked are Not equal
        //so if our case if the elements are not 
        //equal will save that result.
        for (int i = 0; i < x.Length; i++) {
            if (x[i]!=a[i]) ascending = false;
        }
        //then we will do the same but for a descending
        //ordered array.
        Array.Reverse(a);
        for (int i = 0; i < x.Length; i++) {
            if (x[i] != a[i]) descending = false;
        }
 //Now if the array is not in ascending order AND (&&) the array
 //is not in descending order we will know that the array
 //is not sorted. 
        if (ascending==false && descending == false) {
            return false;
        }
        return true;
//p.s 
//Why the name of this function is "isSorted" and not
//"isItSorted"? Well its about how we using it. Lets imagine a
//scenario when we use the function. Something like:
//if(isSorted).....
//if(isItSorted).....
//The first sounds better, right ?
    }