64 lines
1.0 KiB
Perl
64 lines
1.0 KiB
Perl
use 5.20.0;
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use warnings;
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use experimental qw/
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signatures
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postderef
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/;
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use List::UtilsBy qw/ nsort_by /;
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use List::AllUtils qw/ min /;
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use Sim;
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use Graph::Directed;
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my $g = Graph::Directed->new;
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while(<>) {
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/Step (.).*before step (.)/;
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$g->add_edge( $1 => $2 );
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}
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my $workers = 5;
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Sim->schedule(
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0 => \&check_for_work,
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);
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my %available = map { $_ => 1 } $g->vertices;
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Sim->run( fires => 100_000 );
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sub time_for {
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ord(shift) - ord('A') + 1 + 60;
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}
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sub check_for_work {
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say "time: ", Sim->now;
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my @next = sort $g->predecessorless_vertices or return;
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while( $workers ) {
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my $next = shift @next or return;
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$available{$next} or next;
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delete $available{$next};
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$workers--;
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Sim->schedule(
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Sim->now + time_for($next) => sub {
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say "time done $next: ", Sim->now;
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$g->delete_vertex($next);
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$workers++;
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Sim->schedule( Sim->now, \&check_for_work );
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}
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)
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}
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}
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