Problem is in C++ Write a program that computes the phone bills for a list of cu

Question

 Problem is in C++ Write a program that computes the phone bills for a list of customers from a file.  Write a report of the bill to an output file.  Your bill is based on the number of hours of phone use, along with your package.  Here are the different packages:  -------------------------------------------------------------------------- Basic package:  For $9.95 per month 10 hours of access are provided.  Additional hours are $2.00 per hour.  Gold package: For $14.95 per month 20 hours of access are provided.  Additional hours are $1.00 per hour.  Platinum package:  For $19.95 per month unlimited access is provided. --------------------------------------------------------------------------   Write a program that reads from a file called "customers.txt".  The first line of the file will be a number stating how many customers are listed in the file.  Each subsequent line will consist of a name, followed by a package type, followed by a number of phone hours used by that customer.  Here is an example:  5 Schweller gold 19 Garret platinum 59 Kolter platinum 12 Schwarzeneger basic 237 Hansen gold 23   As output, write to a file “billing.txt” a list of each customer followed by their total bill for the month.  For the above file, the corresponding output file should contain:   Schweller $14.95 Garret $19.95 Kolter $19.95 Schwarzeneger $463.95 Hansen $17.95

Explanation / Answer

#include #include #include #include using namespace std; double calculate_bill(string plan, int hours) { if(plan == "gold") { if(hours > 20) { return 14.95 + (hours-20)*1; } else { return 14.95; } } else if(plan == "platinum") { return 19.95; } else { if(hours > 10) { return 9.95 + (hours-10)*2; } else { return 9.95; } } } int main() { ifstream in("customers.txt"); if(in.is_open()) { string name, plan; int hours; int n; ofstream out("billing.txt"); out > plan >> hours; out

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