Question: i need help with this program in c please make...

//Include the following

#include <iostream>
#include <string>
using namespace std;

//Prototypes for your functions: Input, Output, and Process will go here

void Input(string & cell_number, int & relays, int & call_length);
void Output(const string cell_number, const int relays, const int call_length, const double & net_cost, const double & call_tax, const double & total_cost_of_call);
void Process(const int relays, const int call_length, double & net_cost, double & call_tax, double & total_cost_of_call);     

//Function Implementations will go here

///*************************************************************************************
//Name:  Input
//Precondition: State what is true before the function is called.
// Example: the varialbes (formal parameters) have not been initialized
//Postcondition: State what is true after the function has executed.
// Example: the varaibles (formal parameters) have been initialized
//Description:  
// Example:Get input (values of cell_number, relays, and call_length) from the user.

//PURPOSE: SHOW ME THAT YOU KNOW HOW TO READ INPUT AND USE INPUT (CALL BY REFERENCE) & OUTPUT (CALL BY VALUE) PARAMETERS
//FORMAL PARAMETERS ARE: cell_number (string), relays (integer), call_length (integer)
//*************************************************************************************
void Input(string & cell_number, int & relays, int & call_length) // example of all formal parameter using the call by reference mechanism in C++
{
        cout<<"Enter your Cell Phone Number: ";
        cin>>cell_number;
        cout<<"Enter the number of relay stations: ";
        cin>>relays;
        cout<<"Enter the length of the call in minutes: ";
        cin>>call_length;
}

///*************************************************************************************
//Name:  Output
//Precondition: State what is true before the function is called.
//Postcondition: State what is true after the function has executed.
//Description:  Describe what the function does (purpose).
//*************************************************************************************

//NOTE: ALL FORMAL PARAMETERS ARE BEING PASSED BY VALUE. ALSO WE USED CONST TO MAKE SURE THEY WOULD NOT BE CHANGED BY MISTAKE
//      USED THE SAMPLE OUTPUT TO HELP YOU FORMAT YOU OUTPUT
void Output(const string cell_number, const int relays, const int call_length, const double & net_cost, const double & call_tax, const double & total_cost_of_call)
{
        //Use thee following statement to help you format you our output. These statements are called the magic formula.
        cout.setf(ios::showpoint);
        cout.precision(2);
        cout.setf(ios::fixed);
        /********************************************/
        

}

///*************************************************************************************
//Name:  Process
//Precondition: The state what is true before the function is called.
//Postcondition: State what is true after the function has executed.
//Description:  Describe what the function does (purpose).
//*************************************************************************************

//Note: there are 3 input parameter and 3 output parameters
void Process(const int relays, const int call_length, double & net_cost, double & call_tax, double & total_cost_of_call)
{
        //this is an example of a stub
        /*Step 1: put your code here to determine the cnet_cost using the formula: relays / 50.0 * .40 * call_length;

         Step 2: put your if-else statement here to determine the tax rate.
         condition 1 if relays <= 1  && relays <= 5 then  tax_rate is .01 and call_tax = net_cost * tax_rate
         condiion  2 if relays >=6 && relays <=1 then tax_rate is .03 and call_tax = net_cost * tax
         and so forth

         Step 3:put your code here to determine the total_cost using the formula: total_cost = net_cost + call_tax;

        */
}

//Here is your driver to test the program
int main( )
{
        string cell_number;
        int relays;
        int  call_length;
        double net_cost;
        double call_tax;
        double total_cost_of_call;

        

        Input(cell_number, relays, call_length);
        Process(relays, call_length, net_cost, call_tax, total_cost_of_call);
        Output(cell_number, relays, call_length, net_cost, call_tax, total_cost_of_call);


        return 0;
}