#WSQ16 #TC1017 #CARS
Link to github: https://github.com/carlosgreen/TC1017/blob/master/cars.cpp
This program needs to read a file which has a data base with various information relevant to cars. By reading the information, the program needs to print out the follow data:
- average gas mileage in city (City MPG)
- average gas mileage on highway (Highway MPG)
- average midrange price of the vehicles in the set.
The program opens the file and then uses a string variable in order to read stuff from the subline (substring aka substr).
Also, the program has a if inside a loop, which permits the file to be read several times until getting the average midrange price of a vehicle.
Here is how the code should look:
#include <iostream>
#include <fstream>
#include <sstream>
#include <cstdlib>
#include <string>
using namespace std;
int cars(string carstext){
string range, city, highway;
int counter=0;
float range2=0.0, city2=0.0, highway2=0.0, sumcity=0.0, sumrange=0.0, sumhigh=0.0;
ifstream cars;
string line;
cars.open(carstext.c_str());
while(getline(cars, line)){
if((counter%2)==0){
range=line.substr(42, 47);
range2=atoi(range.c_str());
city=line.substr(53, 54);
city2=atoi(city.c_str());
highway=line.substr(56, 57);
highway2=atoi(highway.c_str());
sumrange=sumrange + range2;
sumcity=sumcity + city2;
sumhigh=sumhigh + highway2;
counter++;
}
}
cout<<“city mileage: “<<sumcity/93<<endl;
cout<<“highway mileage: “<<sumhigh/93<<endl;
cout<<“midrange vehicle price: “<<sumrange/93<<endl;
}
int main(){
cout<<cars(“93cars.txt”);
}
