easy, one minutes i solve the problem
* P) ~& ^. _; G; kdivide into half, mean 6/ 6
$ y3 w" U% G) L0 `: g3 n! u5.39.217.76take the heavier 6 ping pong
5 L9 m$ V& w- ]' c公仔箱論壇divide into 3/3, take the heavier 3; v0 ~4 R. `' `: Z1 ? w5 T. y ^
take the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |