first divide it into 3 groups... 4 for each group.../ Z3 S5 X3 z5 {
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...' ^( `* ~$ l N$ v9 i& Q
den... left 4 balls...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。2 Q- l- ?3 {+ [( |
when u use tat 3 groups to test... u oredi know it is heavier or not...! ^8 m: r' k. M2 B# _+ V
so when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...tvb now,tvbnow,bttvb) Y* f1 Y/ k- x, N9 ~- @$ J% D( `6 D" I# u
take the heavier or lighter 1... throw away tat 2 normal ball...
- b5 A* N' B: Z& ]& itvb now,tvbnow,bttvbden u juz nit 2 test the last 2 balls...公仔箱論壇$ W+ r8 r- X+ C8 W I
same for now... take the heavier or lighter 1... |