Identify the following items in the programming code shown below.
#include<iostream>
using namespace std;
int one,
void hello(int&, double, char);
int main ()
{
int x;
double y;
char z;
hello(x, y, z);
hello(x, y -3.5, 'S');
}
void hello(int& first, double second, char ch)
{
int num...