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Re^2: puzzle: how many ways to make $100

by ivancho (Hermit)
on Apr 29, 2006 at 16:28 UTC ( #546503=note: print w/ replies, xml ) Need Help??


in reply to Re: puzzle: how many ways to make $100
in thread puzzle: how many ways to make $100

yeah, first "*" never tries 0. (update: hmm, no, it does try, for 10.. then I don't know why..) But if you actually specify the max number of matches

my $choices = join "\n ", map { "( .{$_} (?{ my \%r = \%{\$^R}; \$r{$_}++; +{ \%r } }) ){0, +".(int($amount/$_))."}" } @bills;
it works fine:
12:28pm /home/Ivancho/bin> probichka.pl 20 (?x-ism: ^ (?{ +{} }) ( .{1} (?{ my %r = %{$^R}; $r{1}++; +{ %r } }) ){0,20} ( .{5} (?{ my %r = %{$^R}; $r{5}++; +{ %r } }) ){0,4} ( .{10} (?{ my %r = %{$^R}; $r{10}++; +{ %r } }) ){0,2} ( .{20} (?{ my %r = %{$^R}; $r{20}++; +{ %r } }) ){0,1} ( .{50} (?{ my %r = %{$^R}; $r{50}++; +{ %r } }) ){0,0} ( .{100} (?{ my %r = %{$^R}; $r{100}++; +{ %r } }) ){0,0} $ (?{ push(@matches, $^R) }) (?!) ) $VAR1 = [ { '1' => 20 }, { '1' => 15, '5' => 1 }, { '1' => 10, '5' => 2 }, { '1' => 10, '10' => 1 }, { '1' => 5, '5' => 3 }, { '1' => 5, '10' => 1, '5' => 1 }, { '5' => 4 }, { '10' => 1, '5' => 2 }, { '10' => 2 }, { '20' => 1 } ];


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