Secret code

[HS Thomas]

I found this snippet of code which sets out deliberately to confuse.
Can you find out what the code does ? Eventually I'll post where I found this from and give credit where it is due.

 

                  main(l
             ,a,n,d)char**a;{
          for(d=atoi(a[1])/10*80-
         atoi(a[2])/5-596;n="@NKA\
       CLCCGZAAQBEAADAFaISADJABBA^\
       SNLGAQABDAXIMBAACTBATAHDBAN\
       ZcEMMCCCCAAhEIJFAEAAABAfHJE\
       TBdFLDAANEfDNBPHdBcBBBEA_AL\
        H E L L O,    W O R L D! "
         [l++-3]; )for(;n-->64; ) 
             putchar(!d+++33^
                  l&1);}

The code is in C. The key is in
char a[ ] = "ABCD"; /* string representation */
char b[ ] = "\x41\x42\x43\x44"; /* hexadecimal representation */
char c[ ] = "\101\102\103\104"; /* octal representation */
char d[ ] = "A" "B" "C" "D"; /* using string properties */
char e[ ] = {'A', 'B', 'C', 'D', ' \0'}; /* using char propery */
In C all the above strings a, b, c, d and e represent �ABCD�.
Please post the output also.
I'll post the answer soon. I thought I'd just give someone the pleasure of finding the answer.

main(l,a,n,d)char**a; {
        
for(d=atoi(a[1])/10*80-atoi(a[2])/5-596; 
       n="@NKA\
          CLCCGZAAQBEAADAFaISADJABBA^\
          SNLGAQABDAXIMBAACTBATAHDBAN\
          ZcEMMCCCCAAhEIJFAEAAABAfHJE\
          TBdFLDAANEfDNBPHdBcBBBEA_AL\
          H E L L O,    W O R L D! "  [l++-3];   
    )   
for(;n-->64; ) 
   putchar(!d+++33^l&1);}

Here is the code again, resembling code this time in case people were trying to read it South Pole top-wise, following Bert's advice about globes.
Run the program as <program name> int1 int2
where int1 and int2 are integers between -180 and 180.
Ok, Ok , the integers are latitude,longitude and the program gives their location in a way.
Try 38 and -122 for San Francisco.
regards
[ September 01, 2003: Message edited by: HS Thomas ]

[HS Thomas]

The solution is in danger of going unposted.
Well, I've tried and don't get any output and can't explain how it works.
There's no fun in posting a solution when no one has tried.
regards

[Michael Dunn]

I don't know how it works, but the output is a (flat) map of the world.
It is quite clever - I just wish I was clever enough to understand how it worked.

[HS Thomas]

At least you got it to run.
Quite an OBE (Out of Body Experience).
I better post the link to the solution then.
Enjoy!

Obfuscated Code
Notice how the graemlins lie in an orbit like planets round the world.
Another OBE!
regards
[ September 02, 2003: Message edited by: HS Thomas ]

[Michael Dunn]

It runs OK on Windows XP, but crashes on Win98.
This is a real memory jog/guess - 16 bit unicode Vs 8 bit unicode?

[HS Thomas]

Well ,I'm trying to run it on XP. Unless the output is being directed elsewhere, I'm not seeing any.
regards

[Michael Dunn]

I use the Dev-C++ compiler, so I had to add
getchar();
at the end, otherwise it just ran/closed.
[ September 03, 2003: Message edited by: Michael Dunn ]

[HS Thomas]

Thanks Michael, I'll give that a shot when I have some time.
regards