> Update 2. Sometimes one is the most oblivious to the most obvious. Added the third version lcp_v6.

I could call using modules cheating, but

a) it's core

b) you have to admit that hippo's sort approach is sexy!

--- with le/ge 
abcdefghijklmnopqrstuvwxyz0.000100071512918021
abcdefghijklmnopqrstuvwxyz9.83499014282074e-05
0.786839962005615

--- with minstr/maxstr 
abcdefghijklmnopqrstuvwxyz0.000100071512918021
abcdefghijklmnopqrstuvwxyz9.83499014282074e-05
0.23346209526062

[download]

Though your final comparison fails with some edge cases :-P

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^3: An efficient way to gather a common portion of several strings' beginnings by LanX
in thread An efficient way to gather a common portion of several strings' beginnings by igoryonya

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