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Carpet cleaning program help needed

swaggerCompSci (2)
Hello this is my first post on this forum :). Can anyone please help me with my code? There seems to be a problem in both the Calculation of my data and my switch function.

Here are the instructions:
Write a program that computes the amount of money it costs to clean a carpet. The program needs to enter the following
information: Size of carpet --- The length and width of the total amount of carpet in feet (assume it is a rectangular shaped carpet).
Allow the user to enter the number of rooms and then for each room the length and width of the carpet in feet (assume every room has a rectangular shaped carpet).
[1] for normal carpets $5 per square yard
[2] for extra dirty carpets $6 per square yard
[3] for deodorizing your carpet $1.5 extra per square yard
[4] for carpets cleaned on Monday through Thursday no extra charge, for carpets cleaned on
Friday an extra $10 fee will be charged, for carpets cleaned on Saturday an extra $15 fee will
be charged, for carpets cleaned on Sunday an extra $20 fee will be charged,


The code below is what I have so far and I need the output and follow the rules here: 

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  #include <iostream.h>
#include "iomanip.h"
#include "apstring.h"

int length, width, day, priceperfoot, area;
char deodorize, extradirty;

double total;


void EnterData();
void CalculateCost();
void DisplayData();

void main()
{
EnterData();
CalculateCost();
DisplayData();
}

void EnterData()
{
cout<<"Please enter the length of the carpet in feet -->";
cin>>length;
while (length<=0)
   {
   cout<<"Incorrect length. Length must be positive, enter positive value -->";
   cin>>length;
   }

cout<<"Please enter the width of the carpet in feet -->";
cin>>width;
   while (width<=0)
   {
   cout<<"Incorrect width. Width must be positive, enter positive value -->";
   cin>>width;
   }


do 
   {
   cout<<"Would you like to deodorize the carpet? [Y,N]-->";
   cin>>deodorize;
   }
while (deodorize!= 'Y' && deodorize !='N'&& deodorize !='y'&& deodorize !='n');


cout<<"Is the carpet extra dirty?[Y,N]-->";
cin>>extradirty;
   while ((extradirty != 'Y') && (extradirty != 'N') && (extradirty != 'y') && (extradirty != 'n'))
   {
   cout<<"Incorrect Input. Is the carpet extra dirty?[Y,N]-->";
   cin>>extradirty;
   }
   
 


do
   {
   cout<<"What day would you like your carpet cleaned?"<<endl<<endl; 
   cout<<"(1 -Monday, 2 -Tuesday, 3 -Wednesday, 4 -Thursday, 5 -Friday, 6 -Saturday, 7 -Sunday ) -->";
   cin>>day;
   cout<< endl <<endl;
   switch(day)
   {
   case 1: cout<< "Monday";
   break;
   case 2: cout<<"Tuesday";
   break;
   case 3: cout<<"Wednesday";
   break;
   case 4: cout<<"Thursday";
   break;
   case 5: cout<<"Friday";
   break;
   case 6: cout<<"Saturday";
   break;
   case 7: cout<<"Sunday";
   break;
   default: cout<<"Enter a valid number [1-7]"<<endl;
   }
   
   }
while ((day != 1) && (day != 2) && (day != 3) && (day != 4) && (day != 5) && (day != 6) && (day != 7));
   
}

void CalculateCost()
{
area = length*width;

if (extradirty == 'Y' || extradirty =='y')
   priceperfoot = 6;
else 
   priceperfoot = 5;

if (deodorize == 'Y' || deodorize =='y')
   priceperfoot += 1.5;  

total = priceperfoot * area;

if (day<5 && day>0)
   total += 0;
else if (day == 5)
   total += 10;
else if (day == 6)
   total += 15;
else if (day == 7 )
    total += 20;
   
}


void DisplayData()
{
cout<< endl << endl; 
cout<< " Your cost for carpet cleaning will be ===> " << priceperyard * area<< endl;
cout<< " Day to be cleaned will be ===> " << day  << endl;



}
swaggerCompSci (2)
Here's a sample output...

Please enter the length of the carpet in feet (assume it is a rectangular shaped carpet). --> 12
Please enter width of the carpet in feet (assume it is a rectangular shaped carpet). --> 12
Do you want to deodorize the carpet? (Y / N) --> Y
Is the carpet is extra dirty?(Y / N) --> N
What a day of the week was your carpet cleaned?
(1 - Monday, 2 – Tuesday, 3 – Wednesday, 4 – Thursday, 5 – Friday, 6 – Saturday, 7 – Sunday) --> 6
Your cost for carpet cleaning will be $ 119.00
Day to be cleaned will be Saturday
Your carpet will be deodorized
Your carpet is not extra dirty
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