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 - v/ F, @. ~, ^$ C8 R5 E, A5 `" Z
水风 发表于 2014-5-2 01:57 ![]()
8 E& C7 H8 V6 e$ h4 J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 ... ; P4 P) c$ ` S x$ P4 V
) G+ g8 g( @8 G) U5 i! Zfixed point f(X) = X = (1-n), where n is the number of people who divide the coconut.. W! d! E7 p0 D# z7 c
4 f: A% ~# ?7 I. d" I: vThe least number of coconut before dividing is Z = [n^(n+1) + X], i.e., always divide (n+1) times.
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After being divided (n+1) times, Z becomes 1, since X is fixed point.
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2 \/ I4 S" K9 J. ~: X' G+ Vn n^(n+1)+X, n^(n)+X, n^(n-1)+X, n^(n-2)+X , y9 b2 c% y" K4 W. W; J
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" Y0 v/ U0 l* q3 79 25 7 1 - F1 s* d4 p4 o1 f/ j
4 1021 253 61 13 1
( j% C* d( C" O; N' P) k" ]5 15621 3121 621 121 21 1
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