An interesting problem

Revision en1, by NNewbie, 2020-02-19 06:38:44

Does someone can help me solve this problem? Click here to the problem It's a problem about Lis , I think this problem is interesting , but I cannot solve it. Thanks in advance.

Tags lis

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en2 English NNewbie 2020-02-19 06:47:24 254 Tiny change: 'vance.\n\nProblem means: You are g' -> 'vance.\n\n**Problem means:** You are g'
en1 English NNewbie 2020-02-19 06:38:44 254 Initial revision (published)