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Here you go.

@s = qw(ABABC BABCA ABCBA); sub l{length@_[0]};for$i(0..$#s){$l=l$s[$i];for$s(0..$l-1){for$o(1..$l +-$s) {$t=substr$s[$i],$s,$o;if(!$i||exists$c{$t}){$c{$t}|=1<<$i}}}};print j +oin$/, 'Common subsequences:',@s,'-'x30,sort{l($b)<=>l$a}grep{$c{$_}==(1<<@s) +-1}keys%c;
Common subsequences:
ABABC
BABCA
ABCBA
------------------------------
ABC
BC
BA
AB
C
A
B


In reply to Re: How can I get the longest and all other common substrings from a set of strings? by thundergnat
in thread How can I get the longest and all other common substrings from a set of strings? by supriyoch_2008

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