_QWOiNYUIVMPFSBKLiGSMAP_'s blog

By _QWOiNYUIVMPFSBKLiGSMAP_, history, 21 month(s) ago, In English,

could anyone explai the problem to me and it is solution ? http://poj.org/problem?id=2096

 
 
 
 
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