Program: struct Here is the struct that you need to create for your program: C++

Question

Program:

struct

Here is the struct that you need to create for your program:

C++ struct

Manufacturer (string), Model (string), Year built (string), Car miles per gallon (double)

Functions

Here are the functions to create:

Function Name

Return Type

Parameter List

(Car &c)

This function should load all car information from the CarInfo.txt file. The data is passed back in the reference parameter. Just read the data from the file and put the data into the appropriate fields of the Car struct instance.

(double m[])

The array to populate is passed in. Fill the array with data from the CarMileage.txt file.

(Car c, double mileage[], double gasCostPerGallon)

Use the information passed in to calculate the yearly gas cost. This method should return the cost. IT SHOULD NOT PRINT ANYTHING!!! Print the result from main.

CarInfo.txt Format

Year built

Car miles per gallon

CarMileage.txt Format(just numbers)

Jan. mileage

Feb. mileage

Dec. mileage

C++ struct

Manufacturer (string), Model (string), Year built (string), Car miles per gallon (double)

Explanation / Answer

Please refer below code

#include<iostream>
#include<string>
#include<fstream>

using namespace std;

typedef struct Car
{
string Manufacturer;
string Model;
string Year_built;
double car_miles;
}Car;

void read_info(Car &c)
{
std::ifstream myfile("CarInfo.txt");

myfile >> c.Manufacturer >> c.Model >> c.Year_built >> c.car_miles;
}
void read_mileage(double m[])
{
double value;
int index = 0;
std::ifstream myfile("CarMileage.txt");

while(myfile >> value)
{
m[index] = value;
index++;
}
}
double gas_cost(Car c, double mileage[], double gasCostPerGallon)
{
double sum = 0;

for(int i = 0; i < 12; i++)
sum += mileage[i];

return (sum / c.car_miles) * gasCostPerGallon;
}
int main()
{
Car c;
double mileage[12];
double cost,gas_cost_per_gallon;

read_info(c);
read_mileage(mileage);

cost = gas_cost(c,mileage,gas_cost_per_gallon);

cout<<"Please enter Gas cost per gallon : ";
cin>>gas_cost_per_gallon;

cout<<"Yearly gas cost = "<<cost<<endl;

return 0;
}

Input:

CarMileage.txt

12.3
14.2
11.1
10.7
9.8
8.8
12.9
11.4
11.2
14.1
9.9
5.7

CarInfo.txt

BMW G310R 2010 13.4

Please refer below output

Please enter Gas cost per gallon : 34.6
Yearly gas cost = 341.094

Process returned 0 (0x0) execution time : 3.596 s
Press any key to continue.

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