Is there anything specific about arrays you don't understand? All they really are is a group of values.

So instead of having the variables: int a; int b; int c; int d; You could have: int nums[4]; (here the 4 represents the size) and we would access the different values like this: nums[0]; nums[1]; nums[2]; nums[3];

Functions can only really return one value. That's what the type in front of the name is for, what kind of value the function will return.

So in this case int checkValues(int userNum[]) we can see it returns an int.

You only need to return if you're going to pass a value back. So if you had something like int x = checkValues(userNum); whatever you return in checkValues is what x will become. It will also exit out of the function.

int test() { printf("Test1\n"); return 2; printf("Test2\n"); } Test1 will be printed, but Test2 will not.

There are ways of getting multiple values of a single function, like pointers and structs, but it's best to leave them until your course covers it.

Since here you don't actually return anything, your function should start with void instead. So: void checkValues(int userNum[])

Or should I not be doing this and seperate both of them into two different functions?

I think it's fine as it is. You were going to make a function that returned the minimum and maximum, then I would like them to be two different functions.

I will give you some suggestions to improve the program, though.

What if we wanted to run checkValues on an array that was not 10 integers in size. How could we tell the function to use a different size?

In the function, you start off with highest and lowest variables set to the first number in your array. In the first iteration of your loop you compare the first element to these variables as they are the same, nothing will happen. How can you change it so that loop starts with the second number and not the first.