There is 12 balls.. divide them into piles of 40 Q. d$ G+ H8 s
so 3 groups for 4..name is A,B,C
5 C: U$ F4 M9 n' |+ ?公仔箱論壇case 1:
* G2 Z6 w3 N5 G; Q公仔箱論壇measure A -- B + D# t; V& p- h0 W5 W* |
A or B is heavier 公仔箱論壇3 m4 f/ i5 X2 Y9 f5 i: l
divide that group into 2 by 2
5 N5 f, \& }; e. G8 P Y0 Xtvb now,tvbnow,bttvbthen divide heavier group into 1 by 1
/ d& I9 o- I' @! b5.39.217.77:8898公仔箱論壇, I/ _% q2 Y4 g
case 2:
1 N5 V3 Z' W) T- D; I# T3 \公仔箱論壇A and B is the same.. therefore C has the heavier ball4 _6 M9 `! C1 w9 p3 w
divide C into 2 by 2
+ G4 {1 n% b) ~3 W( D3 b公仔箱論壇then divide heavier group into 1 by 1..tvb now,tvbnow,bttvb& c* K+ B0 x e$ ]& r
6 o0 g F% H3 s0 w9 Ggot it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
| 