组合数学 (Fall 2011)/Problem set 2: Revision history

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29 September 2011

28 September 2011

  • curprev 14:5514:55, 28 September 2011imported>Etone 1,190 bytes +1,190 Created page with "== Problem 0 == 你的姓名、年级、学号。 == Problem 1 == 令<math>f_k(n)</math>为'''没有'''长为<math>k</math>的圈(cycle)的<math>[n]</math>的排列(permutation)…"