C# programming

Write a function that returns the second largest number in a field of integers. Note that since the array in C does not know how big they are, your function must take two argument: partly array, and partly an integer indicating the number of elements in it. (Your function should therefore not load input from the user with scanf or similar.) You can assume 3 that the input consists of an array with at least two numbers. If all the numbers are equal, so be it there is something that is second largest, so you can return that number instead. For example: given an array with the content [10,20,2,50,50,0] your algorithm should return 20