International C Language Chaos Code contest __c language

The International C Language Chaos Code Contest (IOCCC) is an annual competition that has lasted since 1984. It was held in Usenet by Landon Curt and Larry Bassel, who received entries in the winter, judged in the spring and announced the winners in the summer.

The winner of the 1988 is a messy version of the CDECL program, the author of which is Gopi Reddy. Recall that the CDECL code is probably 150 lines, and the messy version of the code has only 12 lines.

Here's the messy code:

#include <stdio.h>
#include <ctype.h>
#define W printf
#define P While
#define T (s) (W=t (s))
CHAR*X,*B,*L,I[99]; M,w,v;d () {w==9? ( W ("'%.*s ' is
", v,x), T (0)): w==40?
(t (0), D (), T (a)): W==42? (t (0), D (), W ("PTR to"): 0;p (w==40?) ( T (0),
W ("Func returning"), T (): w==91? (t (0) ==32? (W ("array[0..%d]
of ",
Atoi (X)-1), T (0)): W ("Array of"), T (93)): 0); Main () {p ("Input:
"),
B=gets (I)) if (t (0) ==9) l=x,m=v,t (0), D (), W ("%.*s./n/n", m,l); T (s)
{if (!s| | S==W)
{p (*b==9| | *B==32) b++; X=b; V=0;if (W=isalpha *b) 9:isdigit (*b)? 32
:* b++)
if (w<33) p (isalnum (*b)) b++,v++;} return W;}

Can you read and understand?