Question

Looking for some assistance with C++ code using visual studio for the following:

Input file:

Field	Size	Comments
Trip Number	5 digits	Integers Only
Passenger count	1 digit integer	This is not a clown cab… you can't fit 10 people in. ?
Distance	999.99	The distance of the trip.
Fare Amount	999.99	The base fare amount
Toll Amount	999.99	The toll if any for this trip.

For example, the file small.txt looks like:

98002 3          17.7     52.5     5.25

10839 1          2.4       10        0

77087 2          1.2       5.5       0

9132    1          21.7     58        7.87

51535 3          1.1       8.5       0

5015    2          1          7          0

There will be at most 50 records in this file.

Logic

File Name Input: You must make your program flexible and ask the user the name of the file.

For each line you will calculate:

• Total fare = fare + toll.
• Cost Per Mile = fare / distance. Careful. One of the records has a 0 distance. (It was that way in the file. Don't know why.) Make sure that you check and set the Cost Per Mile = 0 if the distance is 0.

Totals

At the end of the report there are some statistics. There are lots of ways we could do this, and I want you to practice using arrays, so for this lab you will have an array of doubles to store the total fares, one for each line in the file. You can track the total number of people with a single integer.

Then, to create the statistics, you will have a function that takes your array of total fares and your integer for the total number of people. It will output to the screen the following:

Total People Transported - The integer that you pass in.

Total Paid – The Grand total of all the total fares. You will loop through your array and sum the values.

Average Cost Per Person – Your Total Paid divided by your Total People transported.

Answer 1

/* C++ program that prompt user to enter the name of the file to read data. The find the cost per file, then total people transported , total paid amount on console output */
//main.cpp
//include header files
#include<iostream>
#include<fstream>
#include<string>
#include<iomanip>
using namespace std;
//function prototype
int totalTransported(int people[],int size);
double totalPaid(double fares[], int size);
//start of main funciton
int main()
{
   //declare arrays to read 50 records from file
   const int size=50;
   int tripNum[size];
   int passengerCount[size];
   double distance[size];
   double fare[size];
   double tollfee[size];

   int index=0;
   double totalfare=0;
   double costPerMile=0;

   string fileName;
   //read file name
   cout<<"Enter name of file to read : ";
   getline(cin,fileName);

   //Open file object
   ifstream fin;
   fin.open(fileName);

   if(!fin)
   {
       cout<<fileName<<" file is not found."<<endl;
       system("pause");
       return EXIT_FAILURE;
   }

  

   //read data from file
   while(index<size && !fin.eof())
   {
       fin>>tripNum[index];
       fin>>passengerCount[index];
       fin>>distance[index];
       fin>>fare[index];
       fin>>tollfee[index];

       //calculate cost per mile
       if(distance[index]==0)
           costPerMile=0;
       else
           costPerMile=(fare[index]+tollfee[index])/distance[index];

       cout<<fixed<<left<<"For line "<<index+1<<", Cost per Mile,$:"
           <<setw(10)<<setprecision(2)<<costPerMile<<endl;

           index++;
   }
   fin.close();

   int count=index;

   int totalPassengers=totalTransported(passengerCount,count);
   //print the total passengers
   cout<<"Number of passengers transported : "<<totalPassengers<<endl;

   double totalPaidAmount=totalPaid(fare,count);
   //print the total paid
   cout<<"Total paid,$ : "<<totalPaidAmount<<endl;
   //Print the average cost per person
   cout<<fixed<<setw(30)<<"Average Cost Per Person,$ :"<<setprecision(2)<<
       totalPaidAmount/totalPassengers<<endl;
  

   system("pause");
   return 0;
}
/*
The function, totalTransported that takes an integer array and size
as arguments and then calculate the total number of persons
transported
*/
int totalTransported(int people[],int size)
{
   int index=0;
   int totalPassengers=0;
   while(index<size)
   {
       totalPassengers=totalPassengers+people[index];
       index=index+1;
   }
   return totalPassengers;
}
/*
The function, totalPaid that takes an double fare array and size
as arguments and then calculate the total paid amount
*/
double totalPaid(double fares[], int size)
{
   int index=0;
   float totalPaid=0;
   while(index<size)
   {
       totalPaid=totalPaid+fares[index];
       index=index+1;
   }
   return totalPaid;
}

small.txt

98002 3 17.7 52.5 5.25
10839 1 2.4 10 0
77087 2 1.2 5.5 0
9132 1 21.7 58 7.87
51535 3 1.1 8.5 0
5015 2 1 7 0

sample output: