28 lines
543 B
Perl
28 lines
543 B
Perl
use 5.20.0;
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use List::Lazy qw/ lazy_list lazy_range /;
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my $mask = 2**16 - 1;
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my $list_a = ( lazy_list {
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$_ *= 16_807;
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$_ %= 2147483647;
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$_;
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} 679 )->grep( sub { not $_ % 4 } )->map(sub{ $_ & $mask });
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my $list_b = ( lazy_list {
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$_ *= 48_271;
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$_ %= 2147483647;
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$_;
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} 771 )->grep( sub { not $_ % 8 } )->map(sub{ $_ & $mask });
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use DDP;
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my $i = 0;
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say $list_a
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->until(sub{ ++$i >= 5_000_000})
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->spy(sub { say $i unless $i % 100_000 })
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->grep(sub { $_ == $list_b->next } )
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->reduce(sub { $a + 1},0);
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