could someone please include steps on how to get to the output? I can run the program in my computer to see what it gives but I don't understand how to get to the answer myself?

4. Find the output of the program. (What will you see on the screen?) #include int one(int , int &); int two (int &, int ); int something(); int main() { int x=9, y=18, z; z=one (x,y); cout