Example Program Submission

/////////////////////////////////////////////////////////////////////
// Student name: Johnny B. Goode
//   Student ID: 123-45-6789
//       Course: CS161 Summer 97
//   Assignment: #1
//     Due date: 7-1-97
//
//  Description: mpg.cpp
//
//   This program prompts the user for the starting
//   mileage, ending mileage, and gallons used. Then
//   it calculates the miles per gallon and prints
//   the result to the screen.
/////////////////////////////////////////////////////////////////////
#include <iostream.h>
#include <iomanip.h>

void main(void)
{
   int start_mileage;       // the mileage before the trip
   int end_mileage;         // the mileage after the trip
   float gallons_used;      // the number of gallons used
   float miles_per_gallon;  // the fuel efficiency

   //prompt the user for the starting mileage
   cout << "Enter the starting mileage: ";

   // put the value in start_mileage
   cin >> start_mileage;
 
   // prompt the user for the ending mileage
   cout << "Enter the ending mileage: ";

   // put the value in end_mileage
   cin >> end_mileage;

   // prompt the user for the gallons used
   cout << "How many gallons of gas were used: ";

   // put the value in gallons_used
   cin >> gallons_used;

   // calculate the MPG
   miles_per_gallon = (end_mileage - start_mileage) / gallons_used;

   // print out the result on the terminal to 2 decimal places
   cout << "Your MPG is " << setprecision(2);
   cout << miles_per_gallon << endl;
}

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