Question

When you go to a restaurant you need to calculate the tip that you need to give the waiter. Write a program that allows a user to enter the total bill, and whether g-good service, a-all right, n-not bad, p-poor. Percentages for the service levels are: g-good service=25%,a-all right=15%,n-not bad=10%,p-poor= 0% . Calculate the tip. Add validation of the input, round up the tip amount and change the background color to green for good service, pink for all right, orange for not bad, colors..

Please HElp!!

Answer 1

c++ CODE :

#include <bits/stdc++.h>
using namespace std;
int main()
{
double totalBil; // int variable totalBil use it as input.
char c; // char variable c , this is service rating.
    Label: cout<<"enter the total bill: ";
cin>>totalBil; // user input of totalBil
cout<<"select service Rating from g, a, n, p : ";
   cin>>c; // user input of service rating
if(c!='g'&&c!='a'&&c!='n'&&c!='p'){ // it checks the validation of input
cout<<"enter valid inputs\n";
goto Label;
}
switch(c){ // switch case to calculate the final bil accoring to service rating
case 'g': // if service rating g is provided by user means good service
{
system("color 20"); // it change color to green
totalBil += (totalBil*.25); // it add 25% of total bil to bil
cout<<"totalBil after Tip: "<<totalBil;
break;
}
case 'a': // if service rating is a means All right.
   {
system("color D0"); // Change background to pink
totalBil += (totalBil*.15); // it adda 15% of TotalBil to Bil
cout<<"totalBil after Tip: "<<totalBil;
break;
}
case 'n': // if service rating is n it means not bad
   {
system("color E0");
totalBil += (totalBil*.10); // it adds 10% of total bil to bil.
cout<<"totalBil after Tip: "<<totalBil;
break;
}
case 'p': // if servise rating is p it means poor service
   {
cout<<"totalBil after Tip: "<<totalBil;
break;
}
}

return 0;
}

OUTPUT:

I comment the code in order to understand.

I couldn't find orange color code so I put light Yellow.