Question

A parking garage charges a $2.00 minimum fee to park for up to three hours. The garage charges an additional $0.50 per hour in excess of these initial three hours. The maximum

charge for any given 24 hour period is $10.00. Assume no car parks for longer than 24 hours at a time. Write a program that calculates and prints the total parking charges for the customers

who parked their cars in this garage (at least 4 cars) and the total for each car as well. So, your program should run for a certain number of cars, process how much each car owns

and, in the end, the total amount for the day (considering all cars). All this information should be saved in a file called log_date.txt, where date, is the date when the program was executed (you can collect it from the user)

You need to use at least 2 functions for this program. Remember that hours can have any real number value. The total #of cars and the total hours (displayed to 1 decimal point), and the total charges (rounded to 3 decimal points).

Provide one screenshot – output (screen), input file and output file. (No test cases)

Please use programming language C++

Answer 1

#include <iostream>
#include <iomanip>
#include <fstream>
#include <bits/basic_ios.h>
#define FIXED_FLOAT_1(x) std::fixed<<std::setprecision(1)<<x
#define FIXED_FLOAT_3(x) std::fixed<<std::setprecision(3)<<x
using namespace std;
int NoOfCars(string file_name){
ifstream in;
int cars;
float x;
in.open(file_name.c_str());
while(in>>x){
cars++;
}
in.close();
return cars;
}
float CalculateFare(float x){
float fixed_charge=2;
float max_charge=10;
float rent;
if(x<=3){
return fixed_charge;
}
else if(x>16){
return max_charge;
}
else{
rent=fixed_charge+x*0.5;
return rent;
}
}
int main() {
float x,sum=0;
ifstream input;
ofstream output;
string date;
string o_file;
cout<<"Enter the date"<<endl;
getline(cin,date);
o_file="log_"+date+".txt";
input.open("cars.txt");
if (!input) {
cout << "Unable to open file";
// terminate with error
}
// string f="new.txt";
output.open(o_file.c_str());
int i=1;
float total=0;
while (input >> x) {
   total=total +x;
output<<"Car "<< i <<" : Hours: "<<FIXED_FLOAT_1(x)<<" Charges: "<<FIXED_FLOAT_1(CalculateFare(x))<<endl;
sum=sum+CalculateFare(x);
i++;
}
//total=2.5;
output<<"Total No. of cars: "<<NoOfCars("cars.txt")<<endl;
output<<"Total Hours: "<<FIXED_FLOAT_1(total)<<endl;
output<<"Total Charge: $"<<FIXED_FLOAT_3(sum)<<endl;

input.close();
output.close();
return 0;
}

input file: cars.txt