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Talk:Look-and-say sequence: Difference between revisions
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==Run-length Encoding==
This task is actually identical to the [[Run-length_encoding]] task, applied iteratively to strings of digits. In fact, the easiest/best solution is simply to re-apply the RLE task here. I think this should be mentioned in the task description. As it is, some of
I do think it's OK to keep this as a separate task, though, since the Conway sequence is definitely an interesting application of RLE in its own right. --[[User:Snoman|Snoman]] 20:20, 11 July 2010 (UTC)
: Since Paddy3118 added a note about RLE, I went ahead and expanded it a bit. Hope that's OK
:: Thanks :-)<br>--[[User:Paddy3118|Paddy3118]] 04:59, 12 July 2010 (UTC)
== PicoLisp ==
For the Picolisp solution, what happens if input sequence has an element repeated 10 or more times? --[[User:Ledrug|Ledrug]] 03:47, 13 October 2011 (UTC)
== Morris Number sequence ==
(this is moved from a duplicate/to be deleted page, since this thread should be here) [[User:EMBee|eMBee]] ([[User talk:EMBee|talk]]) 03:51, 17 January 2020 (UTC)
Look-and-say is also known as Morris Number sequence. should that be added somewhere to make it easier to find? [[User:EMBee|eMBee]] ([[User talk:EMBee|talk]]) 16:20, 16 January 2020 (UTC)
: Yes, I added a sentence to the Rosetta Code task (mentioned below in another talk section) about the '''Morris Number sequence''', and another reference as well, including a book that it was referenced in. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 02:18, 17 January 2020 (UTC)
: I also added the phrase ''look and say'' (without the hyphens) so that Rosetta Code task can be found when performing a search without the punctuation between the keywords. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 02:23, 17 January 2020 (UTC)
== look-and-say <small>versus</small> run-length-encoding ==
I generalized the ''string of digits'' to a ''string of characters'' (for the REXX language example). There is nothing magical about decimal digits, any characters will do (but should be limited to displayable characters for obvious reasons, and a ''blank'' character becomes problematic). Also, the starting/initial number (or character string) can be specified. See the 2<sup>nd</sup> REXX output entry for a non-numeric example. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 21:29, 25 April 2020 (UTC)
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