Discussion @ 1096. Get the Right Route Plate! @ Timus Online Judge

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Discussion of Problem 1096. Get the Right Route Plate!

MSDN This tests help me [2] // Problem 1096. Get the Right Route Plate! 18 Aug 2008 12:47

1
1 3
3 2 1
ANSWER:
1
1

but

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3 1
3 2 1
ANSWER:
IMPOSSIBLE

true1023 Re: This tests help me // Problem 1096. Get the Right Route Plate! 27 Oct 2008 19:08

Why?

true1023 Re: This tests help me // Problem 1096. Get the Right Route Plate! 27 Oct 2008 19:11

So much thanks to you!