@x l.90main(argc,argv)  int argc; /* the number of command-line arguments */  char *argv[]; /* an array of strings containing those arguments */@yint main(@t\1\1@>  int argc, /* the number of command-line arguments */  char *argv[]@t\2\2@>) /* an array of strings containing those arguments */@z@x l.216long freq_cost(v)  Vertex *v;@ylong freq_cost(Vertex *v)@z@x l.284long alph_dist(p,q)  register char *p, *q;@ylong alph_dist(register char *p,register char *q)@z@x l.291void plant_new_edge(v)  Vertex *v;@yvoid plant_new_edge(Vertex *v)@z@x l.324long hamm_dist(p,q)  register char *p, *q;@ylong hamm_dist(register char *p,register char *q)@z@x l.338long alph_heur(v)  Vertex *v;@ylong alph_heur(Vertex *v)@z@x l.342long hamm_heur(v)  Vertex *v;@ylong hamm_heur(Vertex *v)@z@x l.380long prompt_for_five(s,p)  char *s; /* string used in prompt message */  register char *p; /* where to put a string typed by the user */@ylong prompt_for_five(@t\1\1@>  char *s, /* string used in prompt message */  register char *p@t\2\2@>) /* where to put a string typed by the user */@z