There is 12 balls.. divide them into piles of 45.39.217.76* u" y0 O/ ]* T! X2 t) a/ r
so 3 groups for 4..name is A,B,C5.39.217.762 d0 J# V/ E+ j9 e4 w' ^4 g
case 1:
( P) u- x- J3 w- L% u' sTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。measure A -- B 公仔箱論壇" ? o& E# y+ _, {* X7 }
A or B is heavier TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。3 x; y: G* v' ?4 S& U$ t! s0 X" C
divide that group into 2 by 2
9 N$ { n/ { {4 N* E7 cthen divide heavier group into 1 by 1TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。# h3 v, N6 R, Q3 G
5.39.217.76" p( ?3 c8 |; ?1 S |$ G- h7 [
case 2:; y4 A1 s1 L# {; f" a
A and B is the same.. therefore C has the heavier ball5.39.217.76' w! g, z! b( g# _
divide C into 2 by 25.39.217.763 {: B8 Q, E# a k
then divide heavier group into 1 by 1..tvb now,tvbnow,bttvb% v+ i8 l1 L' M, T+ C) x& l
' y9 S. D) m6 |5 _$ Q8 ]0 ?
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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