There is 12 balls.. divide them into piles of 4
: c" w2 K {: ?! a7 F: p% wos.tvboxnow.comso 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。# d6 ?0 R4 `0 R+ v
case 1: tvb now,tvbnow,bttvb4 K8 x5 a/ d: c, e' y7 Q
measure A -- B 公仔箱論壇* @0 U- a% h; T3 X' g3 }
A or B is heavier os.tvboxnow.com$ _9 X+ d/ x D3 ^' Z& g
divide that group into 2 by 2
6 b4 V# X" ~: l0 i4 q% t9 y k* l公仔箱論壇then divide heavier group into 1 by 1tvb now,tvbnow,bttvb0 l$ A2 t2 W2 G8 n- I5 M) P; D
1 z; h! x, T5 z& x6 \5 Z8 k; g& a; y公仔箱論壇case 2:os.tvboxnow.com3 ^, _: h l7 Q5 I* j+ w
A and B is the same.. therefore C has the heavier ball
8 n# o) P* c* _: P% Ntvb now,tvbnow,bttvbdivide C into 2 by 2
% m( u) |/ d% o" e t h# jos.tvboxnow.comthen divide heavier group into 1 by 1..tvb now,tvbnow,bttvb% L' A8 r7 ]# }
tvb now,tvbnow,bttvb; Q4 L B- P+ g
got it in 30 seconds.. not so hard -.-' |
發表於 2007-3-27 01:35 AM
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一知道有答案睇就唔想谂咁耐了
