Super array

Question :

An Super array is defined to be an array in which each element is greater than sum of all elements before that. See examples below:

{2, 3, 6, 13} is a Super array. Note that 2 < 3, 2+3 < 6, 2 + 3 + 6 < 13.

{2, 3, 5, 11} is a NOT a Super array. Note that 2 + 3 not less than 5.

Write a function named isSuper  that returns 1 if its array argument is a isSuper array, otherwise it returns 0.

If you are programming in Java or C#, the function signature is:

   int isSuper (int [ ] a)

If you are programming in C or C++, the function signature is:

   int isSuper (int a[ ], int len) where len is the number of elements in the array.

Solution :

public static int isSuper(int[] a)

        {

            int sum = 0, rtnVal = 1;

            for (int i = 0; i < a.Length - 1; i++)

            {

                sum += a[i];

                if (sum >= a[i + 1])

                {

                    rtnVal = 0;

                    break;

                }  

            }

            return rtnVal;

        }