b***k
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JackSheng (重新振作) 于 (Fri Jun 19 02:33:24 2009, 美东) 提到:
this question from an i-bank, still, you guess which one
how many subsets does {1, 2, ..., n} have that contains no consecutive
integers? for example, {1, 2} not okay, while {1, 3, 5} okay.
think recursion
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daj (肉丝炒饭--小吵肉fan) 于 (Fri Jun 19 14:39:01 2009, 北京) 提到:
赛 。。。
没找到感觉 .....
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accessto (11) 于 (Fri Jun 19 02: |
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