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好難呀...
難...
好難呀....
ddd
好難喎
There is 12 balls.. divide them into piles of 4os.tvboxnow.com" o2 V( w/ n9 n' t" Z
so 3 groups for 4..name is A,B,C
' y  O" B" b0 S1 z& C. R/ rTVBNOW 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。case 1:
8 H; ~4 a/ I9 ]% G3 Etvb now,tvbnow,bttvbmeasure A -- B
& B5 l& j+ o7 F# e' ~& J) 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。A or B is heavier 公仔箱論壇7 p6 }" a" x) K0 a, f' }
divide that group into 2 by 2
) m& }, B0 S- Zos.tvboxnow.comthen divide heavier group into 1 by 1tvb now,tvbnow,bttvb( t: R8 p. k5 W2 E0 K; `4 K
tvb now,tvbnow,bttvb" n4 _  A# K1 c4 H" b0 _: X0 Q
case 2:
2 z' U2 L; D; z5 N' Bos.tvboxnow.comA and B is the same.. therefore C has the heavier ball+ e5 g. J4 D" w, W* \1 O1 G
divide C into 2 by 2
! T) |) E+ K: {0 Y1 i! H/ j$ a/ Rthen divide heavier group into 1 by 1..公仔箱論壇% Z/ f9 U8 M% ^; D; ?' z) ]

, F. c. T" p0 D& Mgot it in 30 seconds.. not so hard -.-'
thx
i got it.... separate into 4 group 3(a)3(b)3(c)3(d), weight 2 of them(a,b), if it is the same, weigh b and c, if they are the same too... then the different ball must be in group d. if you weight different, you identify that group according to the different group. Also, we know the the different ball is heavier or lighter.
0 r5 {0 v) C2 }! v# sTVBNOW 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。2 }: M/ Z' M) K
they separate into 3 group111, weight 2 of them. if they are the same, the extra ball will be the different ball. if they are different, the heavier/ lighter ball will be the different one according to the previous weight.
睇下先
do this is so boring...os.tvboxnow.com- i& v( l' r- g5 a: `) e5 W0 J+ C
play game la~~~
[-X OK la^:)^ ^:)^
一知道有答案睇就唔想谂咁耐了
?
why?
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