39 lines
733 B
Perl
39 lines
733 B
Perl
#!/usr/bin/perl
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use strict;
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chomp (my @data = <STDIN>);
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my %seen;
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foreach my $line (@data) {
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# #1 @ 1,3: 4x4
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#print $line . "\n";
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my ($id, $sx, $sy, $w, $h) = ($line =~ m/#(\d+) @ (\d+),(\d+): (\d+)x(\d+)/);
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foreach my $r (expand_area($sx, $sy, $w, $h)) {
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#print "A: $r\n";
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$seen{$r}++
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}
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}
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my $count = 0;
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foreach my $k (keys %seen) {
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#print "F: $k $seen{$k}\n";
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if ($seen{$k} > 1) {
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$count++
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}
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}
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print $count . "\n";
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sub expand_area ($$$$) {
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my @r;
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my ($sx, $sy, $w, $h) = @_;
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for (my $i = 0; $i < $w; $i++) {
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for (my $j = 0; $j < $h; $j++) {
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my $s = (($sx+$i) . "," . ($sy+$j));
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push @r, $s;
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}
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}
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return @r;
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}
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