Question

Q2.1) Write a program to calculate phone bill of the user. The rule to calculate bill is given as follows: • You should ask the option to the user at first. If the phone bill will be calculated with internet connection option, user must enter 1, otherwise user must enter O. Do all necessary controls and take the number from the user until the user enters one of the correct options. (1 or 0). • Design 2 different methods. Both methods are used to calculate 1 month bill. O bill withoutInternet (double dailyUsg):double bill bill Withoutinternet method is to calculate the bill without internet option. Define a random daily usage price between (0,5). Daily usage price should be double. Send daily usage to the method as a parameter and produce 1-month price. Assume that there are 30 days in each month. o billWithInternet (double dailyUsg):double bill bill Withinternet method is designed to do same thing, but since internet connection is included, you should add $15 after calculation. o Both methods should use double as a return type. Create an array to keep each monthly payment in a year to calculate average usage. (Otherwise you will lose 15 points.) Display the monthly bill as shown in the sample output. (Otherwise you wil lose 15 points.) e Output: have an internet connection with your land phone Press 1. If No, Presse option. Answer the question again! bill of one year is: 66.76 --> 4.705471508412495 --> 102.98552419417616 --> 21.97484578146895 > 142.8015718234432 -) 48.279903000763 --> 141.3798936670056 >> 25.14255805321613 => 129.6649590826884 => 35.74876193553273 => 49.46092699606499 => 97.40346883015502 >>> 1.5379622085982758

Answer 1

#include<bits/stdc++.h>
using namespace std;
#include <functional>
#include <random>

double randomNumber(double M,double N)
{
return M + ((double)rand() / (RAND_MAX / (N-M) ) ) ;
}

double billWithoutInternet(double daily_usage)
{
   return (30*daily_usage);  
}

double billWithInternet(double daily_usage)
{
   return ((30*daily_usage)+15);
}

int main()
{
   int op;
   cout<<"You have an internet connection with your land phone"<<'\n';
   cout<<"If Yes Press 1. If No Press 0"<<'\n';

   bool valid_input = false;

   do
   {
       cin>>op;
       if(op==1 || op==0)
       {
           valid_input = true;
       }
       else
       {
           cout<<"Incorrect option. Answer the question again!"<<'\n';
       }
   } while (valid_input == false);

   vector<double> monthly_bill(12,0.0);

   if(op==0)
   {
       for(int i=0;i<12;i++)
       {
           double M = 0.0;
           double N = 5.0;
           double daily_usage = randomNumber(M,N);
           monthly_bill[i] = billWithoutInternet(daily_usage);
       }
   }
   else
   {
       for(int i=0;i<12;i++)
       {
           double M = 0.0;
           double N = 5.0;
           double daily_usage = randomNumber(M,N);
           monthly_bill[i] = billWithInternet(daily_usage);
       }
   }

   double bill = 0.0;
   for(int i=0;i<12;i++)
   {
       bill = bill + monthly_bill[i];
   }

   bill = bill/12;

   cout<<"Phone bill of one year is: "<<bill<<'\n';
   cout<<"******"<<'\n';

   for(int i=0;i<12;i++)
   {
       cout<<i+1<<" month bill ==> "<<monthly_bill[i]<<'\n';
   }

   return 0;
}

"Please refer to the screenshot of the code to understand the indentation of the code"

#include<bits/stdc++.h> using namespace std; double randomNumber(double M, double N) return M + ((double)rand() 7 (RAND_MAX / (N-M) ) ) ; double billwithout internet (double daily_usage) return (30*daily_usage); double billwithInternet (double daily_usage) return ((30*daily_usage)+15); int main() int op; cout<<"You have an internet connection with your land phone" << '\n'; cout<<"If Yes Press 1. If No Press "<<"\n'; bool valid_input = false; do cin>>op; if(op==1 || Op==0) valid_input = true; else cout<<"Incorrect option. Answer the question again!"<<"\n'; } while (valid input == false); vector<double> monthly_bill(12,0.2); for(int i=0;i<12;i++) if (op==0) double daily_usage = randomNumber(0,5); monthly bill[i] - billwithout Internet (daily usage); else double daily_usage = randomNumber(0,5); monthly_bill[i] = billwith Internet (daily_usage); double bill = @.@; for(int i=0;i<12;i++) bill - bill + monthly_bill[i]; bill = bill/12; cout<<"Phone bill of one year is: "<<bill«<'\n'; cout<<"******"<<"\n': for(int i=0;i<12;i++) cout<<i+1<<" month bill ==> "<<monthly_bill[i]<<"\n'; return @;

You have an internet connection with your land phone If Yes Press 1. If No Press 0 Phone bill of one year is: 102.085 ****** 1 month bill ==> 141.028 2 month bill ==> 74.1574 3 month bill ==> 132.465 4 month bill ==> 134.766 5 month bill ==> 151.747 6 month bill ==> 44.6327 7 month bill ==> 65.2834 8 month bill ==> 130.234 9 month bill ==> 56.6662 10 month bill ==> 98.0955 11 month bill ==> 86.6096 12 month bill ==> 109.331