IOCCC Accepting New, 'Improved' Entries

Rudolf writes: "The 16th International Obfuscated C Code Contest is open from now until 01 Dec 2001 23:59:59 UTC. Details are at the IOCCC web site. From the front page, the contest goals are: -- To write the most Obscure/Obfuscated C program (within contest rules -- To show the importance of programming style, in an ironic way. -- To stress C compilers with unusual code. -- To illustrate some of the subtleties of the C language. -- To provide a safe forum for poor C code. :-)"

Comments

russians will win?

[weinford]

I once heard, it may be a rumour, but at least it's a nice story, that (once upon a time) russian coders liked to write code with obfuscation built in. They were so scared to loose their jobs that they wrote code only themselves could understand, using strange/misleading variable names, senseless loops or whatever. Can anyone confirm this? I think it's a nice technique ;-) Maybe the compiled code is even easier to understand...

You wanna see really obscurifacted?

[cdraus]

check out this

and look under the C link.

1990 winner

[Lussarn]

This is the 1990 winner. A complete basic interpreter. For fun I unobfuscated this code (Took a couple of hours). it's really a piece of art. several commands. Variables. Parentesis and operator precedence. Cool Stuff.


#define O(b,f,u,s,c,a)b(){int o=f();switch(*p++){X u:_ o s b();X c:_ o a b();default:p--;_ o;}}
#define t(e,d,_,C)X e:f=fopen(B+d,_);C;fclose(f)
#define U(y,z)while(p=Q(s,y))*p++=z,*p=' '
#define N for(i=0;io&&!*z)_ x;}_ 0;}main(){m[11*R]="E";while(puts("Ok"),gets(B)
)switch(*B){X'R':C=E;l=1;for(i=0;i",'#');U("=",' !' );}d=B;while(*F=*s){*s=='"'&&j
++;if(j&1||!Q(" \t",F))*d++=*s;s++;}*d--=j=0;if(B[1]!='=')switch(* B){X'E':l=-1
X'R':B[2]!='M'&&(l=*--C)X'I':B[1]=='N'?gets(p=B) ,P [*d]=S():(*(q=Q(B,"TH"))=0,p
=B+2,S()&&(p=q+4,l=S()-1))X'P':B[5]=='"'?*d=0,pu ts (B+6):(p=B+5,printf("%d\n",S
()))X'G':p=B+4,B[2]=='S'&&(*C++=l,p++),l=S()-1 X'F':*(q=Q(B,"TO"))=0;p=B+5;P[i
=B[3]]=S();p=q+2;M[i]=S();L[i]=l X'N':++P[*d]',>)O(K,V,'$',=)
O(V,W,'+',+,'-',-)O(W,Y,'*',*,'/',/)Y(){int o;_*p=='-'?p++,-Y():*p>='0'&&*p

a couple of my favs

[gosand]

I have had these for a while now, not sure where I got them. I tried to post the source, but it wouldn't let me. Check them out.

When compiled and run, it prints out the 12 days of Christmas.

12days.c

And this one is has very interesting source, I think it calculates pi.

pi.c