There is 12 balls.. divide them into piles of 4
8 `. f$ f8 p/ r vso 3 groups for 4..name is A,B,C
* V# h0 A; H0 y( a' ^+ X公仔箱論壇case 1:
! {" J1 k+ P# \" K% m4 ^2 v" 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 TVBNOW 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。. C, E2 t+ E* }: b+ y
A or B is heavier
0 I( Y0 [7 I! r( M" U+ Htvb now,tvbnow,bttvbdivide that group into 2 by 2
) h7 `; a! u; E: 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。then divide heavier group into 1 by 1
5 `4 D2 z; }- ^: q9 q+ {; |, l- m
0 ~4 ~$ f, m) N' I& wcase 2:tvb now,tvbnow,bttvb# M" k' P& [5 c4 l0 l
A and B is the same.. therefore C has the heavier ball公仔箱論壇# t# ?( c9 M! G4 G# ^7 S
divide C into 2 by 2
, ~% y- ~, v6 s, N, m6 J) k! mthen divide heavier group into 1 by 1..公仔箱論壇6 m# P* I' R) B# u
3 j. U2 D) k ?! ?& L( a0 Ztvb now,tvbnow,bttvbgot it in 30 seconds.. not so hard -.-' |