easy, one minutes i solve the problem
+ P! I* D( q x9 ntvb now,tvbnow,bttvbdivide into half, mean 6/ 6tvb now,tvbnow,bttvb" ]9 ^! c/ @( N- w( [
take the heavier 6 ping pongtvb now,tvbnow,bttvb; X4 V% ?$ M" D* X9 z, {. A+ m
divide into 3/3, take the heavier 3tvb now,tvbnow,bttvb% n0 @2 z7 N+ x& P
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 |