Hello.

I know 2 ways of transposing array of lines (matrices of characters joined into lines). 
for( @original ){
    my $i = 0;
    $transposed[ $i ++ ] .= $_ for split //;
    }

for( map $_ = reverse, @original ){
    my $i = 0;
    $transposed[ $i ++ ] .= chop while $_;
    }

[download]
First one works slower. On my PC to transpose 2000 lines of 2000 chars length it worked for: 1 sec with split, 0.6 sec with chop. Both ways are non-destructive (after using map in second).
Do you know faster ways?

upd. Second way doesn't work properly if there are '0' char in strings, see more at pryrt's message - Re: How to transpose lines faster?.
upd.2 My bad. Second way is destructive. Correct is to use for( map ~~reverse, @original ){...}. See more at AnomalousMonk's msg - Re: How to transpose lines faster?

In reply to How to transpose lines faster? by rsFalse

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