easy, one minutes i solve the problem2 q# h1 f9 ^$ u
divide into half, mean 6/ 6
" k$ E( {! S: E& `; s3 J5.39.217.77take the heavier 6 ping pong9 q2 J' e9 E, X7 K% l) C
divide into 3/3, take the heavier 3tvb now,tvbnow,bttvb" M9 M; A! o# F7 ?. ?. Y3 g
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 |