locked
GAME -- Debug the Code !! RRS feed

  • Question

  • Hi guys ,

         lets start a Technical game ...! The Rules are Simple ...

    Rules :

    1] Languages used  :  c , c++ , java, vb [ only debugging kind ]

    2] If one member post any question , u should give the answer .

    3] If You answered a Question , then post another question for other members .

     

     

    Saturday, September 15, 2007 6:01 AM

Answers

  • Hey....i'd guess 22...? Am not very good at c/c++ so am not sure if there are some hidden runtime/compiletime errors... but s'far as i know... while computing;
     
    sum=(i++)+(++i);
    it will first inc the value of i to 11;
    so;
    sum=11+(++i);
    and it will inc the value of i to 12 AFTER it assigns the value of (11+11) to sum.....ie.22.....plz do let me know if im wrong....!! im here to l;earn...!!!!!!
                                Vandana
    Sunday, September 16, 2007 3:35 AM

All replies

  • q1]

      What will be the o/p of this ?

     

    Code Snippet
    void main()
    {
    int i=10,sum;
    sum=(i++) + (++i);
    printf("sum=%d",sum);
    }

     

     
     
    Saturday, September 15, 2007 6:02 AM
  • Hey....i'd guess 22...? Am not very good at c/c++ so am not sure if there are some hidden runtime/compiletime errors... but s'far as i know... while computing;
     
    sum=(i++)+(++i);
    it will first inc the value of i to 11;
    so;
    sum=11+(++i);
    and it will inc the value of i to 12 AFTER it assigns the value of (11+11) to sum.....ie.22.....plz do let me know if im wrong....!! im here to l;earn...!!!!!!
                                Vandana
    Sunday, September 16, 2007 3:35 AM
  • @vandhana ... Your answer is right for Some Compilers ...

    But the actual answer depends upon the Compiler ...

    Sunday, September 16, 2007 8:47 AM
  •  

    the Next Qustion to debug !!

     

    Code Snippet
    main()
    {
    int a=0;
    if(a && (a++ || a++));
    printf("%d",a);
    }

     

     

    wat is the o/p ???
    Sunday, September 16, 2007 8:50 AM
  • hi guys no one knows the answer ah ??
    Monday, September 17, 2007 6:07 AM
  • output will be a=2 Smile

    Monday, September 17, 2007 3:00 PM
  • Since a++ is called twice

    the o/p is 2

    Monday, September 17, 2007 4:07 PM
  • you are right Guys !!!


    Tuesday, September 18, 2007 8:33 AM
  • The Next One ::

     

     

    Code Snippet

    void main()
    {

    printf("ans=%d",1/0);

    }

     

     

     

     

    wats the o/p ...

     

    Tuesday, September 18, 2007 1:33 PM
  • I think the answer will be a Runtime error: Division by Zero.
    Now, for the previous question, isn't the answer 0? Since C follows lazy evaluation, it won't evaluate the right side of && once it finds that a is 0. This is because 'a' being 0, the && is anyway going to result in false. So C saves time by not evaluating right side of &&. So, the increments never happen, and 'a' remains unmodified...
    I tried the code in Dev-C++ too. Only 0 was printed in this case. Any others got different answers?
    Tuesday, September 18, 2007 2:42 PM
  •  

    Next one !!!

     

    Give the output of the program :


    void main()
    {
    char *s="12345sn";
    printf("%d",sizeof(s));
    }

     

     

    Friday, September 21, 2007 5:27 AM
  • the answer is 4

    Friday, September 21, 2007 8:31 AM
  • Sorry but you have got to be kidding me. All these quesitons are basically like 1+1 in the programming world. I had more difficult questions in my +2 (that is saying something). Some more competitive questions please? I love debugging Big Smile

    Friday, September 21, 2007 7:28 PM
  • ok rahul .... This is for you !!

     

    Code Snippet
    /* Mult.c */

    int main ( int argc, char* argv[ ] )
    {
    int a[3], i, ret ;
    if ( argc < 3 || argc > 3 )
    {
    printf ( "No arg...blah blah ") ;
    exit ( 0 ) ;
    }

    for ( i = 1 ; i < argc ; i++ )
    a = atoi ( argv ) ;
    ret = a[1] * a[2] ;
    return ret ;
    }

     

     



    Code Snippet

    /* Spawn.c */


    #include
    #include

    main( )
    {
    int val ;
    val = spawnl ( P_WAIT, "C:\\Mult.exe", "3", "10",
    "20", NULL ) ;
    printf ( "\nReturned value is: %d", val ) ;
    }

     

     

    Explain wats the o/p ... and how ??
    Saturday, September 22, 2007 2:51 AM
  •  

    wats the output for this !!
    Friday, October 19, 2007 3:07 AM
  • A new challenge

     

    Display the non Fibonacci series

     

    Ex- 4 6 7 9 10 11 12 ..........................

     

    Friday, October 19, 2007 8:02 AM