16 lines
364 B
Perl
16 lines
364 B
Perl
sub zig_zag {
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my ($w, $h, @r, $n) = @_;
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$r[ $_->[1] ][ $_->[0] ] = $n++ for
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sort { $a->[0] + $a->[1] <=> $b->[0] + $b->[1] or
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($a->[0] + $a->[1]) % 2
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? $a->[1] <=> $b->[1]
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: $a->[0] <=> $b->[0]
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}
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map { my $e = $_;
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map{ [$e, $_] } 0 .. $w-1
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} 0 .. $h - 1;
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@r
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}
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print map{ "@$_\n" } zig_zag(3, 5);
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