Talk:Longest common prefix: Difference between revisions

== No listsstrings case ==

As I understand it, the example says that given 0 listsstrings, it should return the empty string, i.e. <code>lcp() = ""</code>. Is this necessary? I would argue the answer is undefined in this case, as ''any string'' is vacuously a "common prefix" of 0 strings, and therefore the "longest common prefix" is the longest string, which doesn't exist. --[[User:Spoon!|Spoon!]] ([[User talk:Spoon!|talk]]) 01:32, 21 March 2015 (UTC)