(n-1)*2^(n+1)
回複:中美洲奧賽題:過橋(2星)
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• (n-1)*2^(n+1) -jamtien- ♂ (13 bytes) () 11/07/2009 postreply 16:42:56
(n-1)*2^(n+1)
• (n-1)*2^(n+1) -jamtien- ♂ (13 bytes) () 11/07/2009 postreply 16:42:56
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