Thread: Thinking About Programming - A Guide for Beginners ?!?!? little problem

well the Thinking About Programming - A Guide for Beginners
I gain trough mail I try it out

well I could do alone all except to break the program if

Code:

(video1 && video2) < 1

or something like that

well problem occurs with days

I gave that lot if cuz if 1 day cannot be 1 days

so that if you say 1 day it musnt come out 1 days

and when I try to put in

Code:

(video1 && video2) < 1

it's problem cuz it doesn't look at all other if-s

how could I repair this problem???
I'm out of ideas

Code:

#include <iostream>
using namespace std;

int main ()



{
    int x;
    int y;
    int video1;
    int video2;
    cout << "we have 2 available videos to rent\n\n";
    cout << "1 - yes\n_____________________\n1. video costs 2.00$ |\n";
    cout << "2. video costs 3.00$ |\n";
    cout << "_____________________|\n";
    cout << "\n\n\n\n2 - no\n_____________________\nexit                 |\n";
    cout << "_____________________|\n\n\n\n\n";
    cout << "would you like to rent any of videos?\n";
    cin >> x;
    if (x == 2)
          {cout <<"good bye\n";}
    
    else if (x == 1)
         {
               cout << "\n\nwould you like to rent video1?\n";
               cout << "this video costs 2.00 $\n";
               cout << "for how many days would you like to rent video 1\n";
               cin >> video1;
               
               cout << "\n\nwould you like to rent video 2?\n";
               cout << "this video costs 3.00$";
               cout << "for how many days would you like to rent video 2\n";
               cin >> video2;
               
               if (video1 > 1)
               {cout << "\n\n\nvideo 1 is rented for: "<< video1 <<" days\n";}
               else if (video1 == 1)
               {cout << "\n\n\nvideo 1 is rented for: "<< video1 <<" day\n";}
               else
               {cout << "\n\n\nvideo 1 is not rented\n";}
               
               if (video2 > 1)
               {cout << "video 2 is rented for: "<< video2 <<" days\n\n";}
               else if (video2 == 1)
               {cout << "video 2 is rented for: "<< video2 <<" day\n\n";}
               else
               {cout << "video 2 is not rented\n";}

               
               cout << "total cost of video 1 is: " << video1*2.00 << "$\ntotal cost of video 2 is: " << video2*3.00 << "$\n\n";
               cout << "total cost is: " << video1*2.00 + video2*3.00 <<"$\n";
         }
    system ("pause");
    return 0;
}

Code:

(video1 && video2) < 1

I don't think that code does what you think it does. Do you mean to do this instead?

Code:

if( video1 < 1 && video2 < 1)

got it

Code:

#include <iostream>
using namespace std;

int main ()



{
    int x;
    int y;
    int video1;
    int video2;
    cout << "we have 2 available videos to rent\n\n";
    cout << "1 - yes\n_____________________\n1. video costs 2.00$ |\n";
    cout << "2. video costs 3.00$ |\n";
    cout << "_____________________|\n";
    cout << "\n\n\n\n2 - no\n_____________________\nexit                 |\n";
    cout << "_____________________|\n\n\n\n\n";
    cout << "would you like to rent any of videos?\n";
    cin >> x;
    if (x == 2)
          {cout <<"good bye\n";}
          
    else if (x == 1)
         {
               cout << "\n\nwould you like to rent video1?\n";
               cout << "this video costs 2.00 $\n";
               cout << "for how many days would you like to rent video 1\n";
               cin >> video1;
               
               cout << "\n\nwould you like to rent video 2?\n";
               cout << "this video costs 3.00$";
               cout << "for how many days would you like to rent video 2\n";
               cin >> video2;
               
               if (video1 < 1 && video2 < 1)
               {}
               
               
               else if (video1 > 0 || video2 > 0)
               {
               if (video1 > 1)
               {cout << "\n\n\nvideo 1 is rented for: "<< video1 <<" days\n";}
               else if (video1 == 1)
               {cout << "\n\n\nvideo 1 is rented for: "<< video1 <<" day\n";}
               else if (video1 < 1)
               {cout << "\n\n\nvideo 1 is not rented\n";}
               
               if (video2 > 1)
               {cout << "video 2 is rented for: "<< video2 <<" days\n\n";}
               else if (video2 == 1)
               {cout << "video 2 is rented for: "<< video2 <<" day\n\n";}
               else
               {cout << "video 2 is not rented\n\n";}

               
               cout << "total cost of video 1 is: " << video1*2.00 << "$\ntotal cost of video 2 is: " << video2*3.00 << "$\n\n";
               cout << "total cost is: " << video1*2.00 + video2*3.00 <<"$\n";
               }
               

         }
    system ("pause");
    return 0;
}

you could probably simplify your final output section by using the >= operator, you could do away with the seperate '==' test and just use two if else statements

Code:

 
          else if (video1 > 0 || video2 > 0)
          {              
                if (video1 >= 1)
                {
                    cout << "\n\n\nvideo 1 is rented for: "<< video1 <<" day(s)\n";
                }
                else
                {
                    cout << "\n\n\nvideo 1 is not rented\n";}
                }               
                if (video2 >= 1)
                {
                    cout << "video 2 is rented for: "<< video2 <<" day(s)\n\n";
                }
                else
                {
                    cout << "video 2 is not rented\n\n";
                }  

           // results.....
           // results.....
         }