Oh, dear. Too bad I wasn't around for that one - my off-the-cuff solutions seem to be a good bit shorter than the ones presented there. {sigh} Oh, the things I lose out on by not having a time machine... 

# Perl
$ perl -wlne'print "@{[reverse split]}"'
  one   two three four    
four three two one

# Bash, as a script
#!/bin/bash
a=($@);for ((b=${#a[*]};b>=0;b--)); do c+=(${a[$b]}); done
echo ${c[*]}

[download]

Not that this addresses the original question. :)

Back on topic: some years ago, Mark-Jason Dominus ran a "Quiz-of-the-Week" mailing list in which he came up with interesting challenges for Perl hackers. As I recall, he wasn't able to continue it; some other people tried carrying it (Shlomi Fish among them, IIRC), but it eventually died off. While it lasted, however, it was quite a bit of fun - it might be worth your while to take a look at the archives and see if anything strikes your fancy.


--
"Language shapes the way we think, and determines what we can think about."
-- B. L. Whorf

In reply to Re^4: Perl Puzzles by oko1
in thread Perl Puzzles by snape

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