runtime/macros/maze/mazeclean.c

   1 /*
   2  * Cleaned-up version of the maze program.
   3  * Doesn't look as nice, but should work with all C compilers.
   4  * Sascha Wilde, October 2003
   5  */
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8
   9 char *M, A, Z, E = 40, line[80], T[3];
  10 int
  11 main (C)
  12 {
  13   for (M = line + E, *line = A = scanf ("%d", &C); --E; line[E] = M[E] = E)
  14     printf ("._");
  15   for (; (A -= Z = !Z) || (printf ("\n|"), A = 39, C--); Z || printf (T))
  16     T[Z] = Z[A - (E = A[line - Z]) && !C
  17              & A == M[A]
  18              | RAND_MAX/3 < rand ()
  19              || !C & !Z ? line[M[E] = M[A]] = E, line[M[A] = A - Z] =
  20              A, "_." : " |"];
  21   return 0;
  22 }