OpenEuphoria

Re[4]: OOT: Interesting C quiz

• Posted by akusaya at gmx.net Feb 17, 2004
• 579 views

OK,

1. change i-- to n--
2. change i<n to -i<n
3. change i<n to i+n (tricky!)
4. change i<n to ~i<n

The question says there are at least 4 ways,, who knows there are
more...??

P> Show them please, I'm curious.
P> Phil

P> akusaya at gmx.net wrote:
>> 
>> 
>> Yes i think...
>> 
>> btw after several thinking and asking friends I managed to get all
>> solutions! Thanks!
>> 
>> C> I think listfilter mangled the code...
>> 
>> 
>> C> It should be:
>> 
>> C> /*
>> C> Find at least 4 different ways to change only one
>> C> character in the C code below so it will print the
>> C> minus sign "-" 20 or 21 times only.
>> C> */
>> 
>> C> #include <stdio.h>
>> 
>> C> main()
>> C> {
>> C>   int i, n= 20; /*= 20 was changed to a space!*/
>> C>   for(i=0; i<n; i--) printf("-");
>> C>   return 0;
>> C> }
>> 
>> C> akusaya at gmx.net wrote:
>> >> 
>> >> 
>> >> Got it from http://www.genesim.co.il/cprog.htm
>> >> 
>> >> For C programmers, here is a C code quiz. You are invited to give it a
>> >> try.
>> >> 
>> >> /*
>> >> Find at least 4 different ways to change only one
>> >> character in the C code below so it will print the
>> >> minus sign "-" 20 or 21 times only.
>> >> */
>> >> 
>> >> #include <stdio.h>
>> >> 
>> >> main()
>> >> {
>> >>   int i, n ;
>> >>   for(i=0; i<n; i--) printf("-");
>> >>   return 0;
>> >> }
>> >> 
>> >> ===========================
>> >> I can only know 2 of them,
>> >> 1. change i-- to n--
>> >> 2. change i<n to -i<n
>> >> 
>> >> Can anyone help me finding the other two? I am very curious...
>> >> 
>> >> Thx!
>> >> 
>> >> 



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