Pancake numbers: Difference between revisions
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m →{{header|REXX}}: optimized/simplified the pancake function DO loop, added/changed comments. |
SqrtNegInf (talk | contribs) Added Perl |
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p(11) = 13 p(12) = 14 p(13) = 15 p(14) = 16 p(15) = 17 |
p(11) = 13 p(12) = 14 p(13) = 15 p(14) = 16 p(15) = 17 |
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p(16) = 18 p(17) = 19 p(18) = 20 p(19) = 21 p(20) = 23 </pre> |
p(16) = 18 p(17) = 19 p(18) = 20 p(19) = 21 p(20) = 23 </pre> |
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=={{header|Perl}}== |
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<lang perl>use strict; |
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use warnings; |
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use feature 'say'; |
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sub pancake { |
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my($n) = @_; |
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my ($gap, $sum, $adj) = (2, 2, -1); |
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while ($sum < $n) { $sum += $gap = $gap * 2 - 1 and $adj++ } |
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$n + $adj; |
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} |
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my $out; |
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$out .= sprintf "p(%2d) = %2d ", $_, pancake $_ for 1..20; |
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say $out =~ s/.{1,55}\K /\n/gr;</lang> |
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{{out}} |
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<pre>p( 1) = 0 p( 2) = 1 p( 3) = 3 p( 4) = 4 p( 5) = 5 |
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p( 6) = 7 p( 7) = 8 p( 8) = 9 p( 9) = 10 p(10) = 11 |
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p(11) = 13 p(12) = 14 p(13) = 15 p(14) = 16 p(15) = 17 |
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p(16) = 18 p(17) = 19 p(18) = 20 p(19) = 21 p(20) = 23</pre> |
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=={{header|Phix}}== |
=={{header|Phix}}== |
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