/*
  Module: tr3_q4.cpp
  Author: Yariv Amar

  What? This program calculates worker salary

  Input : 
  Worker level (from a,b or c)
  Workers regular hours
  Workers night hours 
  Output: Gross worker's salary.
  Assumptions on input: Valid

  How?
  Algorithm: getting data from the user, using "switch" for the 
  worker level, then calculating the salary according to the table 
  given in the question. 

*/
#include <iostream.h>

void main()
{
	char Level ; //declering on worker's level
	double Reg_hours , Night_hours ; //declering on hours type
	double Salary; //declering on Salary

	const double REG_C = 20;		//***************************************
	const double REG_B = 35;		//  defining Regular salary per hour
	const double REG_A = 70;		//
	const double NIGHT_C = 25;		//
	const double NIGHT_B = 45;		//  defining Night salary per hour
	const double NIGHT_A = 250;		//
	const int PRES_C = 20;		//  
	const int PRES_B = 15;		//  defining Extra % after 25 night hours
	const int PRES_A = 10;		//***************************************

	cout<<"Please enter worker Level (from a-c):";
	cin>>Level;
	cout<<"\nPlease enter number of REGULAR hours:";
	cin>>Reg_hours;
	cout<<"\nPlease enter number of NIGHT hours:";
	cin>>Night_hours;

	switch (Level)
	{
	case 'a': 
		//calculating salary by adding Regular hours and then checking
		//the Night hours for Extra payment
		Salary = Reg_hours*REG_A;
		if (Night_hours<=25) Salary = Salary + Night_hours*NIGHT_A;
		else
			Salary = Salary + 25*NIGHT_A + 
			(Night_hours - 25)*NIGHT_A*(100+PRES_A)/100;
		cout<<"\nThe worker salary is: "<<Salary<<"\n";
		break;
	case 'b':
		Salary = Reg_hours*REG_B;
		if (Night_hours<=25) Salary = Salary + Night_hours*NIGHT_B;
		else
			Salary = Salary + 25*NIGHT_B + 
			(Night_hours - 25)*NIGHT_B*(100+PRES_B)/100;
		cout<<"\nThe worker salary is: "<<Salary<<"\n";
		break;
	case 'c':
		Salary = Reg_hours*REG_C;
		if (Night_hours<=25) Salary = Salary + Night_hours*NIGHT_C;
		else
			Salary = Salary + 25*NIGHT_C + 
			(Night_hours - 25)*NIGHT_C*(100+PRES_C)/100;
		cout<<"\nThe worker salary is: "<<Salary<<"\n";
		break;
	default: //when user didn't type correct level
		cout<<"\nYou have entered invalid Level , please try again.\n";
	}
}

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