Write a function that has one integer parameter and returns 1 if the given argument is a multiple of 3. If the argument is not a multiple of 3, the function should return 0. Write a main program that tests your function with enough test cases to give you confidence in the correctness of your function. Use assertions and, optionally, calls to printf. The function prototype should be:

int multipleof3(int n)

Hint: what does the % operator do?

language is in c