There is 12 balls.. divide them into piles of 42 ~) u" \5 A7 C6 Q
so 3 groups for 4..name is A,B,Ctvb now,tvbnow,bttvb" G! f- w1 Y5 V2 ]. L6 H. q+ l( g- k
case 1:
3 v+ H4 H/ _; h6 MTVBNOW 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
! j$ k$ s0 K, U" d7 @. e& H公仔箱論壇A or B is heavier
% s9 H( x" V0 e5.39.217.76divide that group into 2 by 25.39.217.76* W" L3 _+ \9 b; R4 {
then divide heavier group into 1 by 1
: y4 h9 N# {4 Z- l9 v8 }) v! E" E5.39.217.76
/ m9 e3 J3 X! ]0 g* B8 {7 c5.39.217.76case 2:5.39.217.76) ]0 ~* P% g- U2 C
A and B is the same.. therefore C has the heavier balltvb now,tvbnow,bttvb9 @4 {) w9 j: U9 m
divide C into 2 by 2
0 O+ H! D% b) _. V; m! ]" S& b$ _then divide heavier group into 1 by 1..
! ?9 K% e2 K- @4 h
4 W2 V3 Y. P, F9 _2 ~5 Y, K# jgot it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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