Given a few strings, how many strings can be lexicographically least by modifying the alphabet?

Posted by Jackson W on Stack Overflow See other posts from Stack Overflow or by Jackson W
Published on 2012-12-16T22:58:44Z Indexed on 2012/12/16 23:03 UTC
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alphabetical

Number of strings can be huge as in 30000. Given N strings, output which ones can be lexicographically least after modifying the english alphabet. e.g. acdbe......

for example if the strings were:

omm moo mom ommnom

"mom" is already lexicographically least with the original english alphabet. we can make the word "omm" least by switching "m" and "o" in the alphabet ("abcdefghijklonmpqrstuvwxyz"). the other ones you cant make lexicographically last, no matter what you do.

any fast way to do this? I have no ways to approach this except try every single possible alphabet

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