easy, one minutes i solve the problem
% K7 ?! g6 ?. A, cdivide into half, mean 6/ 6
8 q* z( P' |) }, ftake the heavier 6 ping pong
6 S* j( ~4 A r2 I& ~( t公仔箱論壇divide into 3/3, take the heavier 3tvb now,tvbnow,bttvb* D- t$ s8 a- L& N5 [
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 |