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Need homework help

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Re: Need homework help

#11

Nov 19th, 2008

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Originally Posted by Rashakil Fol

If you think your code produces the correct results on the inputs you've tried, maybe you could say what your code does to us, step by step. We could then see where you have a mistaken understanding.

Maybe I am not understanding what you are asking, but this is what my code does right now.

It ask for the number of days worked this month, as long as it is in between 1-31
then it takes the days I put in and first multiplies (0.01*2)*#days I put in and produces a result based off the days I have put in.

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Re: Need homework help

#12

Nov 19th, 2008

But that wouldn't give the right result. It would give 0.50 if the number of days was 25. But on the 25th day, the person would earn 167772.16.

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Re: Need homework help

#13

Nov 19th, 2008

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Originally Posted by Rashakil Fol

But that wouldn't give the right result. It would give 0.50 if the number of days was 25. But on the 25th day, the person would earn 167772.16.

Ok yes I know it is not producing the right result. That is my problem as how do I get the code to produce the right result.

I believe I need to set something to 0 and have it double each day they work, but I just do not get it.

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Re: Need homework help

#14

Nov 19th, 2008

If you set something to 0 you can double it for a lifetime - it will never become something different than 0.

Think on using a loop to add the dailySalary to the total earntMoney for each day of work. Then you can adjust the value of dailySalary to be added in every cycle of the loop at your pleasure

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Re: Need homework help

#15

Nov 19th, 2008

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
 
int main ()
{
	int days = 1;
	 double firstDayPay=0.01;
	double	salary=1,
		dailyPay=firstDayPay;
 
 
		cout << "How many days did you work?: ";
		cin >> days;
			while (days <1 || days>31)
				 {cout << "That is an invalid days selection, please select 1-31: ";
				  cin >> days;}
				salary = (firstDayPay * 2) * days;
				dailyPay = salary;
 
 
				cout << "\nPer day                Total";
				cout << "\n-----------------------------\n";
 
				cout << "Your total salary is: " << fixed << setprecision (2) << salary;
			cout << "\n";
 
 
 
return 0;
 
}
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;

int main ()
{
	int days = 1;
	 double firstDayPay=0.01;
	double	salary=1,
		dailyPay=firstDayPay;


		cout << "How many days did you work?: ";
		cin >> days;
			while (days <1 || days>31)
				 {cout << "That is an invalid days selection, please select 1-31: ";
				  cin >> days;}
				salary = (firstDayPay * 2) * days;
				dailyPay = salary;


				cout << "\nPer day                Total";
				cout << "\n-----------------------------\n";

				cout << "Your total salary is: " << fixed << setprecision (2) << salary;
			cout << "\n";



return 0;

}

You need a loop, right? You have a loop, but only to get good input. Once you have good input, say 10, then you need to do something ten times, right?

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should display a table showing how much the salary was for each day worked

That is one cout statement for every day. Right now you only have a cout statement for the grand total:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
cout << "Your total salary is: " << fixed << setprecision (2) << salary;
cout << "Your total salary is: " << fixed << setprecision (2) << salary;

Where is the the cout statement for the individual days?

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Re: Need homework help

#16

Nov 20th, 2008

Ok I am just not getting it at all.

I had programming.

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Re: Need homework help

#17

Nov 20th, 2008

Got it working now. I just subracted 0.01 from the total and it comes up with the correct amount. Would there be an easier way to do this?

Thanks.

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
 
int main ()
{
	int days, firstday;
    double numPay = .01;
    double total = 0;
 
 
 
		cout << "How many days did you work?: ";
		cin >> days;
		cout <<"\n";
			while (days <1 || days>31)
				 {cout << "That is an invalid days selection, please select 1-31: ";
				  cin >> days;}
			firstday=1;
 
			cout<<"Day"<<"\t\t"<<"Amount Earned"<<endl;
			cout<<"----------------------------"<<endl;
 
			while (firstday<=days)
			{cout<< firstday <<"\t\t\t"<< numPay <<endl;
          numPay = numPay *2;
          firstday++;
		  }
		  total=numPay-0.01;
          cout<<" "<<endl;
          cout<< fixed << showpoint << setprecision(2);
          cout<<" Total Amount To Be Paid Is $"<<"\t"<< total << endl;
          cout<<" "<<endl;
          return 0;
          }
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;

int main ()
{
	int days, firstday;
    double numPay = .01;
    double total = 0;
			


		cout << "How many days did you work?: ";
		cin >> days;
		cout <<"\n";
			while (days <1 || days>31)
				 {cout << "That is an invalid days selection, please select 1-31: ";
				  cin >> days;}
			firstday=1;

			cout<<"Day"<<"\t\t"<<"Amount Earned"<<endl;
			cout<<"----------------------------"<<endl;

			while (firstday<=days)
			{cout<< firstday <<"\t\t\t"<< numPay <<endl;
          numPay = numPay *2;
          firstday++;
		  }
		  total=numPay-0.01;
          cout<<" "<<endl;
          cout<< fixed << showpoint << setprecision(2);
          cout<<" Total Amount To Be Paid Is $"<<"\t"<< total << endl;
          cout<<" "<<endl;
          return 0;
          }

Last edited by davids2004; Nov 20th, 2008 at 10:12 am.

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Re: Need homework help

#18

Nov 20th, 2008

How about this

 Help with Code Tags 
 c++ Syntax (Toggle Plain Text) 
//...With original code
salary = (dailyPay*days)*2;
//...
//...With original code
salary = (dailyPay*days)*2;
//...

$.:-cikara21-:.$

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Re: Need homework help

#19

Nov 20th, 2008

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Originally Posted by davids2004

Help with Code Tags

C++ Syntax (Toggle Plain Text)
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
 
int main ()
{
	int days, firstday;
    double numPay = .01;
    double total = 0;
 
 
 
		cout << "How many days did you work?: ";
		cin >> days;
		cout <<"\n";
			while (days <1 || days>31)
				 {cout << "That is an invalid days selection, please select 1-31: ";
				  cin >> days;}
			firstday=1;
 
			cout<<"Day"<<"\t\t"<<"Amount Earned"<<endl;
			cout<<"----------------------------"<<endl;
 
			while (firstday<=days)
			{cout<< firstday <<"\t\t\t"<< numPay <<endl;
          numPay = numPay *2;
          firstday++;
		  }
		  total=numPay-0.01;
          cout<<" "<<endl;
          cout<< fixed << showpoint << setprecision(2);
          cout<<" Total Amount To Be Paid Is $"<<"\t"<< total << endl;
          cout<<" "<<endl;
          return 0;
          }
#include <iostream> #include <string> #include <iomanip> using namespace std; int main () { int days, firstday; double numPay = .01; double total = 0; cout << "How many days did you work?: "; cin >> days; cout <<"\n"; while (days <1 || days>31) {cout << "That is an invalid days selection, please select 1-31: "; cin >> days;} firstday=1; cout<<"Day"<<"\t\t"<<"Amount Earned"<<endl; cout<<"----------------------------"<<endl; while (firstday<=days) {cout<< firstday <<"\t\t\t"<< numPay <<endl; numPay = numPay *2; firstday++; } total=numPay-0.01; cout<<" "<<endl; cout<< fixed << showpoint << setprecision(2); cout<<" Total Amount To Be Paid Is $"<<"\t"<< total << endl; cout<<" "<<endl; return 0; }

I would go through this code and rename a lot of the variables. The computer couldn't care less, but anyone reading it and trying to understand the code (including yourself) is going to get pretty confused because the variable names aren't a good description of what they represent.