There is 12 balls.. divide them into piles of 4
) l3 C5 k: |0 F9 Dso 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。 x3 U8 g& K: j6 x7 s7 Y8 Z$ X: w
case 1: 公仔箱論壇: i% H! |2 q! B* A1 I' E4 d
measure A -- B
/ q4 { `! e+ u. Q) u9 J* T+ 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。A or B is heavier
; J/ |, _ u7 F2 K7 ytvb now,tvbnow,bttvbdivide that group into 2 by 2
6 c* X& Q" ?' R" U$ H, C5 Dthen divide heavier group into 1 by 1www2.tvboxnow.com8 ^! h- C4 ?3 E P# A
; E+ Y) }+ K: _0 K6 I. c/ W5 Etvb now,tvbnow,bttvbcase 2: {4 r8 D% Y, z: Z: c8 C# ^/ _
A and B is the same.. therefore C has the heavier ball
7 `( h) H* ]7 jwww2.tvboxnow.comdivide C into 2 by 2
; \& Y ?3 i0 Z5 {then divide heavier group into 1 by 1..
$ g+ l, S4 s, `; E# owww2.tvboxnow.comTVBNOW 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 S" Q) Z0 s1 _* H, E6 @! U
got it in 30 seconds.. not so hard -.-' |