返回列表 回復 發帖
this is too easy!!
, f' J' o1 g; n' D" g, vtvb now,tvbnow,bttvb
  `& l1 \4 u3 |2 l# a1. put 6 at each side.. take the one side which is heavier
7 ]& y: ]: c$ Y0 l3 |2. put 3 at each side.. also take the heavier side
' {+ W# R/ ~6 p% Y+ X5.39.217.773. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball..
返回列表