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 # b& W' G( K" q2 X0 e( D+ G
水风 发表于 2014-5-2 01:57 , J- h: p8 D6 w5 V1 O
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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fixed point f(X) = X = (1-n), where n is the number of people who divide the coconut.0 E9 w/ Z4 [& p" {, A
e/ I& R3 G6 l) r0 ?1 i9 OThe least number of coconut before dividing is Z = [n^(n+1) + X], i.e., always divide (n+1) times.
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6 [4 Z8 N, D9 l/ FAfter being divided (n+1) times, Z becomes 1, since X is fixed point.% E( M# Q5 {, r. J- I/ w1 T# u
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n n^(n+1)+X, n^(n)+X, n^(n-1)+X, n^(n-2)+X
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% d7 _& @3 q( H1 e, s. K5 15621 3121 621 121 21 1& K1 T; i% r: }' k. ~* S
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