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Re: Finding shared element in two lists

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114111] Re: Finding shared element in two lists
  • From: Ray Koopman <koopman at sfu.ca>
  • Date: Wed, 24 Nov 2010 06:57:33 -0500 (EST)
  • References: <icg6no$955$1@smc.vnet.net>

On Nov 23, 2:58 am, Jason Ebaugh <ebaughja... at gmail.com> wrote:
> I figured out my original question this morning.
> The answer is about as "functional" as one can get!
>
> Use the built in function LongestCommonSequence[]

I think you want LongestCommonSubsequence. From the documentation:

LongestCommonSequence[    "AAABBBBCCCCC", "CCCBBBAAABABA"]
LongestCommonSubsequence[ "AAABBBBCCCCC", "CCCBBBAAABABA"]

AAABB
AAAB


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