Thanks for your try..., but hard to follow

皆兄弟也 · 2010-06-17 06:59:23Z

Thanks for your try..., but hard to follow简介

来源: 皆兄弟也于 2010-06-17 06:59:23 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

回答: 对！此题有点挑战性。请解释下您的答案：C(N+n-1,n) 由皆兄弟也于 2010-06-15 12:32:08

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