# I'm a newbie and I can't understand the errors in my program

This is a discussion on I'm a newbie and I can't understand the errors in my program within the C++ Programming forums, part of the General Programming Boards category; >>costa = 2.00; You are assigning a literal double to an int try costa = 2...

1. >>costa = 2.00;

You are assigning a literal double to an int

try costa = 2

2. > and i still don't see how the total hours will be displayed?

My mistake - they won't... I didn't read your problem close enough.

The warnings are my fault - everything should be double to take care of fractions of an hour or fractions of a dollar
Code:
```/* Calculate the total charges and the total hours for the
parking garage. */

#include <iostream>

using std::cout;
using std::cin;
using std::endl;

void calculatecharges (double hoursa, double hoursb, double hoursc);

int main()
{
double a, b, c;

cout<<"Enter the number of hours for CAR 1:";
cin>>a;

cout<<"Enter the number of hours for CAR 2:";
cin>>b;

cout<<"Enter the number of hours for CAR 3:";
cin>>c;

calculatecharges(a, b, c);

return 0;
}

void calculatecharges(double hoursa, double hoursb, double hoursc)
{
double costa = 0;
double costb = 0;
double costc = 0;
double totalhours = 0;
double totalcost = 0;

if(hoursa <= 3)
costa = 2;
else if (hoursa >= 17)
costa = 10;
else
costa = 2 + ((hoursa-3) * .5);

if(hoursb <= 3)
costb = 2;
else if (hoursb >= 17)
costb = 10;
else
costb = 2 + ((hoursa-3) * .5);

if(hoursc <= 3)
costc = 2;
else if (hoursc >= 17)
costc = 10;
else
costc = 2 + ((hoursc-3) * .5);

totalhours = hoursa + hoursb + hoursc;
totalcost = costa + costb + costc;
cout<<"CAR 1 CHARGES: "<<costa<<endl;
cout<<"CAR 2 CHARGES: "<<costb<<endl;
cout<<"CAR 3 CHARGES: "<<costc<<endl;
cout<<"TOTAL: "<<totalhours<< " hours, \$"<<totalcost<<endl;
}```

3. THANKS SO MUCH! all of u have been such a great help. i think i'm gonna try to find C++ for dummies....i hear that's a good book to read. thanks again!

4. i don't know....i just ran the program, and it still doesn't work...i get this:

/tmp/ccUHX0O8.o: In function `main':
/tmp/ccUHX0O8.o(.text+0xa0): undefined reference to `calculatecharges(double, d'
collect2: ld returned 1 exit status

5. I am doing the same excercise...

except i use for loops for my customer

I tested your program and it runs fine. I don't know why u can't get it run. Make sure everything is right, header syntax etc...

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