read roll no., marks, count pass and fail

This is a discussion on read roll no., marks, count pass and fail within the C++ Programming forums, part of the General Programming Boards category; Hi I was trying to write a code to read roll no., marks, count pass, fail, A grade, B grade, ...

  1. #1
    Registered User
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    Mar 2011
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    254

    read roll no., marks, count pass and fail

    Hi

    I was trying to write a code to read roll no., marks, count pass, fail, A grade, B grade, etc. Do you find the code okay? As far as I could confirm it was working fine. I wanted your advice on those bold red braces which I want to use for clarification to show that the statements within those red braces are related. Can those red braces affect the the overall working? Please let me know. Thanks

    Regards
    Jackson

    Code:
    #include <iostream>
    #include <cstdlib>
    
    using namespace std;
    
    int main()
    
    {
      int rollno=0, pass=0, fail=0, Agrade=0, Bgrade=0, Cgrade=0, Dgrade=0, Egrade=0, Fgrade=0;
      float TM=0, OM=0;
    
      cout << "Enter total marks: ";
      cin >> TM;
    
      do
        {
            cout << "Enter Roll No. : ";
            cin >> rollno;
    
            cout << "Enter obtained marks: ";
            cin >> OM;
    
            {
            if (OM >= 0.5*TM)
                {
                    pass = pass++;
                }
            else
                {
                    fail = fail++;
                }
            }
    
            {
            if (OM >= 0.8*TM)
                {
                    Agrade = Agrade++;
                }
    
            else if (OM >= 0.7*TM)
                {
                    Bgrade = Bgrade++;
                }
    
            else if (OM >= 0.6*TM)
                {
                    Cgrade = Cgrade++;
                }
    
            else if (OM >= 0.5*TM)
                {
                    Dgrade = Dgrade++;
                }
    
            else if (OM >= 0.4*TM)
                {
                    Egrade = Egrade++;
                }
    
            else
                {
                    Fgrade = Fgrade++;
                }
            }
    
        }
    
        while (rollno > 0);
    
      cout << "Total pass is: " << pass << endl;
      cout << "Total fail is: " << fail << endl;
      cout << "Total A grades are: " << Agrade << endl;
      cout << "Total B grades are: " << Bgrade << endl;
      cout << "Total C grades are: " << Cgrade << endl;
      cout << "Total D grades are: " << Dgrade << endl;
      cout << "Total E grades are: " << Egrade << endl;
      cout << "Total F grades are: " << Fgrade << endl;
    
      system("pause");
    
    }
    Last edited by jackson6612; 04-23-2011 at 04:33 PM.
    I'm an outright beginner. Using Win XP Pro and Code::Blocks. Be nice to me, please.

  2. #2
    and the hat of wrongness Salem's Avatar
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    They're not harmful in any way if that's what you're asking.

    > I want to use for clarification to show that the statements within those red braces are related.
    I would normally use a blank line and a comment to achieve the same thing.
    Code:
            // calculate overall pass/fail
            if (OM >= 0.5*TM)
                {
                    pass++;
                }
            else
                {
                    fail++;
                }
    
            // calculate individual grades
            if (OM >= 0.8*TM)
    > pass = pass++;
    But all the statements like this are wrong, it's just
    pass++;
    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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