#include<iostream>
#include<fstream>
#include<iomanip>

using namespace std;

int main()
{
const double reg_service = 10.00;
const double reg_extrafee = 0.20;
const double prem_service = 25.00;
const double prem_extradayfee = 0.10;
const double prem_extranightfee = 0.05;

ifstream inFile;
ofstream outFile;

int num1;
int accountnum;
int daymins;
int nightmins;
int regmins;
int extramins;
char servicetype;
double amountdue;
double charge;

inFile.open("c:\\telephoneinput.txt");
outFile.open("c:\\telephoneresults.txt");



outFile << fixed << showpoint;
outFile << setprecision(2);



//outFile << "Please enter your account number, service code, number of minutes used: ";
inFile >> servicetype >>accountnum;


while(inFile)
{

switch (servicetype)
{
case 'r':
case 'R':

amountdue = (regmins * reg_extrafee)+ reg_service;
break;

if(regmins <=50)
{
outFile << "Accout Number: "<< accountnum <<" Amount Due:" << " $ " << amountdue <<endl;
break;

case 'p':
case 'P':
}
else

amountdue = (daymins * prem_extradayfee) + prem_service;
outFile << "Account Number: "
<< accountnum
<< endl;
outFile << "Amount Due:" << " $ " << amountdue <<endl;



}



inFile.close();
outFile.close();
}


system("pause");
return 0;
}


Write a program that calculates and prints the bill for a cellular telephone company. The company offers two types of service: regular and premium. Its rates vary, depending on the type of service. The rates are computed as follows:

Regular service: $10.00 plus first 50 minutes are free. Charges for over 50 minutes are $0.20 per minutes.

Premium service: $ 25.00 plus:

a. For calls made from 6am-6pm, the first 75 minutes are free; charges for over 75 minutes are $0.10 per minute.

b. for calls made from 6pm-6am, the first 100 minutes are free; charges for over 100 minutes are $0.05 per minute.

Your program should output a service code, account number and the number of minutes used. A service code of r or R for regular service; a service code of p or P for premium service. Treat any other code as any error.