employees & salary

[wise_ron]

Hi, i have a little problem. I want this program to continue to ask the user how much is their hourly worked, until the user enters -1, this will end the program. Can any one give me some hints in how to do this.

#include<stdio.h>
main()
{
   float hours_worked, hourly_rate, salary, overtime_hours, overtime_salary, times_half, total_salary;
    
	 printf("Enter hours worked(-1 to end): ");
	 scanf("%f",&hours_worked); //stores variable hours_worked
	 printf("Enter hourly rate of the worker ($00.00): ");
	 scanf("%f",&hourly_rate);  //stores variable hourly_rate
   
	if (hours_worked<=40)
	{		
	  salary= hours_worked*hourly_rate; // multiplication to get variable salary
	  printf("Salary is $%0.2f", salary);
	}
	else if (hours_worked>=41)
	{
	  overtime_hours =hours_worked-40;  // calculations for overtime_salary
      salary =40*hourly_rate;
	  times_half =overtime_hours*hourly_rate/2;
	  overtime_salary =times_half+hourly_rate;
      total_salary =salary+overtime_salary;	
	  printf("Employee worked %3.0f hour(s) overtime for a value of $%0.2f\n", overtime_hours, overtime_salary);
	  printf("Salary is $%0.2f", total_salary); 
    }
	//else if(hours_worked==-1) // i need to have something here when the there is -1 the program will end
	
	   
     return 0;
		
}

[fnoyan]

Something like this....

 float hours_worked=0;
do {
	 printf("Enter hours worked(-1 to end): ");
	 scanf("%f",&hours_worked); //stores variable hours_worked
         hours_worked+=hours_worked;
} while (hours_worked == -1);
....

You also should check the validty of the answer entered by the use (for exmaple a negative value!)