graph/pr.c

   1 #include "graph/pr.h"
   2 #include <stdio.h>
   3
   4 void
   5 pr_vertex (unsigned int vi)
   6 {
   7   printf ("%d", vi);
   8 }
   9
  10 void
  11 pr_edge (unsigned int vi, unsigned int vj)
  12 {
  13   putchar ('{');
  14   pr_vertex (vi);
  15   putchar (',');
  16   pr_vertex (vj);
  17   putchar ('}');
  18 }
  19
  20 void
  21 pr_arc (unsigned int vi, unsigned int vj)
  22 {
  23   putchar ('(');
  24   pr_vertex (vi);
  25   putchar (',');
  26   pr_vertex (vj);
  27   putchar (')');
  28 }