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#include <iostream>
#include <iomanip>
using namespace std ;
 
void initialize ( int& , int& , char& ) ;
void getHoursRate ( double& , double& ) ;
double payCheck ( double& , double& ) ;
void printCheck ( double , double, double ) ;
int main()
{
    int x ;
    int y ;
    int w ;
 
    char z ;
 
    double rate ;
    double hours ;
    double amount ;
 
    cout << initialize( x , y , z ) << endl ;            //error is here
    cout << getHoursRate() << endl ;
    cout << payCheck( hours , rate ) << endl ;
    printCheck( hours, rate, amount ) << endl ;
    cout << funcOne( w, x, y ) ;    //confusion starts here
    cout <<    
}
 
void initialize ( int& x, int& y, char& z )
{
    x = y = 0 ;
    z = ' ' ;
}
 
void getHoursRate ( double& hours , double& rate )
{
    cout << "Hours worked:  " << endl ;
    cin >> hours ;
    cout << "Rate:  " << endl ;
    cin >> rate ;
}
 
double payCheck ( double& hours, double& rate )
{
    double pay ;
 
    int ot ;
 
    if ( (hours - 40 <= 0 ) )
        pay = rate * hours ;
    else
    {
        ot = hours - 40 ;
        pay = (40 * rate) + (ot * rate * 1.5) ;
    }
    return pay ;
}
 
void printCheck ( double hours , double rate , double pay )
{
    cout << setprecision(2) << fixed << showpoint << setfill('.') << left ;
    cout << "Hours" << setw(15) << "Rate" << setw(15) << "Amount Due" << endl << endl ;
    cout << hours << setw(15) << "$" << rate << setw(15) << "$" << pay << endl ;
}
 
void funcOne ( double in, int x, int y )        //number 2 in my post
{
    cout << "Input a value:  " << endl ;
    cin >> in ;
 
    x = x * x + ( y - in ) ;
}
 
char nextChar ( char ch )                    //number 1 in my post
{
    ch = ch++ ;
}
 
#include <iostream>
#include <iomanip>
using namespace std ;

void initialize ( int& , int& , char& ) ;
void getHoursRate ( double& , double& ) ;
double payCheck ( double& , double& ) ;
void printCheck ( double , double, double ) ;
int main()
{
    int x ;
    int y ;
    int w ;
    
    char z ;

    double rate ;
    double hours ;
    double amount ;

    cout << initialize( x , y , z ) << endl ;            //error is here
    cout << getHoursRate() << endl ;
    cout << payCheck( hours , rate ) << endl ;
    printCheck( hours, rate, amount ) << endl ;
    cout << funcOne( w, x, y ) ;    //confusion starts here
    cout <<    
}

void initialize ( int& x, int& y, char& z )
{
    x = y = 0 ;
    z = ' ' ;
}

void getHoursRate ( double& hours , double& rate )
{
    cout << "Hours worked:  " << endl ;
    cin >> hours ;
    cout << "Rate:  " << endl ;
    cin >> rate ;
}

double payCheck ( double& hours, double& rate )
{
    double pay ;
    
    int ot ;

    if ( (hours - 40 <= 0 ) )
        pay = rate * hours ;
    else
    {
        ot = hours - 40 ;
        pay = (40 * rate) + (ot * rate * 1.5) ;
    }
    return pay ;
}

void printCheck ( double hours , double rate , double pay )
{
    cout << setprecision(2) << fixed << showpoint << setfill('.') << left ;
    cout << "Hours" << setw(15) << "Rate" << setw(15) << "Amount Due" << endl << endl ;
    cout << hours << setw(15) << "$" << rate << setw(15) << "$" << pay << endl ;
}

void funcOne ( double in, int x, int y )        //number 2 in my post
{
    cout << "Input a value:  " << endl ;
    cin >> in ;

    x = x * x + ( y - in ) ;
}

char nextChar ( char ch )                    //number 1 in my post
{
    ch = ch++ ;
}