Any help with this Program ..

This is a discussion on Any help with this Program .. within the C++ Programming forums, part of the General Programming Boards category; Hi there .. I wanna write a program that reads two numbers ( First & Last ) & Print the ...

  1. #1
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    May 2009
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    9

    Unhappy Any help with this Program ..

    Hi there ..

    I wanna write a program that reads two numbers ( First & Last )
    & Print the numbers between them & the sum ...

    This is the code ..

    Code:
    #include <iostream>
    #include <conio>
    
    int main ()
    {
       int First , Last , sum = 0;
       cout<< "Enter the First number : ";
       cin>> First;
       cout<< "Enter the Last number : ";
       cin>> Last;
    
       cout<< "\nThe numbers between " << First << " and " << Last << " are :";
       cout<< "\n----------------------------------" << endl;
    
       while ( First <= Last )
       {
          cout<< First << endl;
          First++;
          sum+=First ;
       }
       while ( First >= Last )
       {
          cout<< Last << endl;
          Last++ ;
          sum+=Last;
       }
       cout<< "----------------------------------" << endl;
       cout<< "The sum = " << sum ;
       getch ();
       return 0 ;
    }

    There is no proplems when ( First >= Last ) ..
    But there is when ( First <= Last ) ..

    Also when I enter (-First & -Last ) or (+First & -Last) or ( -First & +Last)
    .. The sum is wrong ..

    & How can I solve the problem when ( First = Last)..

    Any Help Greatly Appreciated..

  2. #2
    and the hat of int overfl Salem's Avatar
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    Use an if statement perhaps?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  3. #3
    Registered User
    Join Date
    May 2009
    Posts
    9
    ok I'll try ...

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