gensy850711

first divide it into 3 groups... 4 for each group...
' y7 S) `# _3 R, w% J% p2 `! ITVBNOW 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。den use 2 groups to test... if the weight is same... den throw away these 2 groups.. if not... use another 1 group to test with tat 2 groups... throw away the same weight groups...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。+ A7 z- P9 n  d+ A2 y. x1 Q. }
den... left 4 balls...5.39.217.77:8898' G9 W9 V9 d9 N" L) Y/ W) K
when u use tat 3 groups to test... u oredi know it is heavier or not...公仔箱論壇3 p! x" _. R' k
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...4 \9 j% E* q: M" l* c9 b1 {! W# G* ]
take the heavier or lighter 1... throw away tat 2 normal ball...tvb now,tvbnow,bttvb8 a  y& i' H. G" n0 K
den u juz nit 2 test the last 2 balls...
4 w8 G6 {- g; x# d  B& c5.39.217.77:8898same for now... take the heavier or lighter 1...