first divide it into 3 groups... 4 for each group...
9 I4 u" ~4 s; k% d# fden 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...
7 P3 N& i+ f+ Q1 I$ z* 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。den... left 4 balls...
; d, }* F! Y9 T# Xwhen u use tat 3 groups to test... u oredi know it is heavier or not...
, Z1 h& c6 Q# {: v. j" L gtvb now,tvbnow,bttvbso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...
# e9 {( Q" h6 Y" Ltvb now,tvbnow,bttvbtake the heavier or lighter 1... throw away tat 2 normal ball...5.39.217.77:8898% i0 V, U4 _; C) R2 J. \
den u juz nit 2 test the last 2 balls...
# s0 k; z. Z9 g. C. m( I公仔箱論壇same for now... take the heavier or lighter 1... |