TA的每日心情 | 擦汗 2016-4-17 12:18 |
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签到天数: 1 天 [LV.1]炼气
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本帖最后由 tingsanguo 于 2014-5-2 14:01 编辑
* C% B! g3 U3 r" |( a水风 发表于 2014-5-2 01:57 ![]()
, X/ T2 p* x) m再次重温自己与数学天才们之间的差距有多大了。解出来了,我还看不懂思路 ...
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( d7 h/ I7 m3 W" Q# f8 Z5 [fixed point f(X) = X = (1-n), where n is the number of people who divide the coconut.: [$ k/ ^: B+ l) B l; b" `5 u/ |
' p) g( I9 ^ ^) UThe least number of coconut before dividing is Z = [n^(n+1) + X], i.e., always divide (n+1) times.7 s, P S/ y4 j5 {4 U: X
3 k* Z4 L# {* ?* t- a7 WAfter being divided (n+1) times, Z becomes 1, since X is fixed point.. I( m3 m6 q4 j- P
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n n^(n+1)+X, n^(n)+X, n^(n-1)+X, n^(n-2)+X
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4 1021 253 61 13 1 " M( |, \/ f# t' G
5 15621 3121 621 121 21 1% f; A3 o5 S! K
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