Find palindromic numbers in both binary and ternary bases: Difference between revisions
Content deleted Content added
Added Sidef |
Thundergnat (talk | contribs) →{{header|Perl 6}}: GLR updates. Remove apology for speed. (runs in about 1/40th the time as when originally posted.) |
||
Line 320:
=={{header|Perl 6}}==
Instead of searching for numbers that are palindromes in one base then checking the other, generate palindromic trinary numbers directly, then check to see if they are also binary palindromes (with additional simplifying constraints as noted in other entries). Outputs the list in decimal, binary and trinary
<lang perl6>constant palindromes = 0, 1, |gather for 1 .. * -> $p {
my $pal = $p.base(3);
my $n = :3($pal ~ '1' ~ $pal.flip);
| |||