There is 12 balls.. divide them into piles of 4
; b3 ^' m V9 r& wtvb now,tvbnow,bttvbso 3 groups for 4..name is A,B,CTVBNOW 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。8 t- s: U/ ?; L! w0 f6 w0 E) ~
case 1: tvb now,tvbnow,bttvb# z9 D, c% I e4 O+ g$ {
measure A -- B tvb now,tvbnow,bttvb# J# ^1 H' y0 y
A or B is heavier www.tvboxnow.com/ e# M5 F) h8 T+ ?. g
divide that group into 2 by 2
+ `& R2 D+ N" `then divide heavier group into 1 by 1www.tvboxnow.com- ~# e/ I# ~& L1 U9 L
" [5 `1 Y: g9 U3 z公仔箱論壇case 2:
% ^/ Y) `5 j5 c% sA and B is the same.. therefore C has the heavier ball! D/ {& L- X* \/ R; j4 y, j. [4 a
divide C into 2 by 2
! P& c+ C8 p! ~2 I, \tvb now,tvbnow,bttvbthen divide heavier group into 1 by 1..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。7 Q- J$ W: ?7 W6 c: ~8 y, m) V
/ H( [* a$ x: {& itvb now,tvbnow,bttvbgot it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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