There is 12 balls.. divide them into piles of 4
8 G; c6 w7 P1 @, g oTVBNOW 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。so 3 groups for 4..name is A,B,C
3 Y7 R8 Z" n7 S1 n" g+ Kcase 1: 5.39.217.77:8898. R3 [! \" {) x+ l% H
measure A -- B 5.39.217.77:88989 A# a3 @: \4 m7 H: U% T# T# Q
A or B is heavier
* |& A) Z) C0 y9 m, V6 N; K. q, Qdivide that group into 2 by 2, C+ o2 s; c2 q6 L! z
then divide heavier group into 1 by 1
2 d9 m t4 k1 p4 `1 ktvb now,tvbnow,bttvb7 t j/ N5 M+ f% X2 a9 J6 ]
case 2:
$ u' q9 ^. F$ _4 g( 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。A and B is the same.. therefore C has the heavier ball# a0 l+ K. {* i) V% C
divide C into 2 by 2
. h& J1 ]/ X- J$ {" ~tvb now,tvbnow,bttvbthen divide heavier group into 1 by 1..
& Z6 c! R* _: e% O, o( P& o公仔箱論壇
# R1 ~4 ~; d% @9 c4 w: u7 V8 z9 P3 rtvb now,tvbnow,bttvbgot it in 30 seconds.. not so hard -.-' |