divde the 12 balls into 3 sets of 4. ( w. { Y: W4 h8 y. ^2 [
weight any 2 sets.
$ j B1 W4 u8 {if the 2 sets are equal, then you know the heavy one is in the thirdTVBNOW 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。& z" c9 F4 r& |- P/ C1 g9 L
if one of the 2 is heavier, then the heavy one is in that settvb now,tvbnow,bttvb+ \* i0 p# ?& n; j: u0 a9 O' g
then divide the 4 balls into 2.( n" d0 ?3 ?$ L# h3 Q( r$ q
weigh them
, L. `1 _' W7 Q, O4 [/ R0 g公仔箱論壇and divide the heavier into 1
- E: t7 o6 G7 V# ?3 h5.39.217.77and weight them.公仔箱論壇, y4 e- ^2 t: E* X) d0 n+ R
3 x weighing and get the ans.
! m3 W' q: T0 w8 e8 U& f* y8 ETVBNOW 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。in less than 15 secs. |