There is 12 balls.. divide them into piles of 4
% ^3 I5 G7 _! q) Z0 M9 }% _4 r& `tvb now,tvbnow,bttvbso 3 groups for 4..name is A,B,C
: z0 c# b8 a; W; H% X8 Z5.39.217.77case 1:
5 j# t6 }2 W4 Z+ }公仔箱論壇measure A -- B
/ i2 U. B; k% p2 fA or B is heavier
2 U r5 f3 T! I5.39.217.77divide that group into 2 by 2
0 v2 [0 T8 P) B& o2 U/ p; b: @tvb now,tvbnow,bttvbthen divide heavier group into 1 by 1tvb now,tvbnow,bttvb$ r9 n R, u# I A% J; a$ }
. A$ ~6 d2 E, ?( S. V0 [6 |
case 2:. x& }; F; `: {, \' K- B2 A
A and B is the same.. therefore C has the heavier balltvb now,tvbnow,bttvb3 ?* d, {% j7 _6 U: h
divide C into 2 by 2
5 x7 P# g1 i! T5.39.217.77then divide heavier group into 1 by 1..
1 P- q- y0 [0 i5 F8 J* V# X8 D5.39.217.77
, w& ^6 ^) a( h1 m5 h. ~! ^公仔箱論壇got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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