easy, one minutes i solve the problem6 t0 O+ a3 f# n; k+ p9 Y R; L% |
divide into half, mean 6/ 6tvb now,tvbnow,bttvb, s; m" _" j. a6 [
take the heavier 6 ping pong
% P* R& R, S( Y7 q* S2 Hdivide into 3/3, take the heavier 3tvb now,tvbnow,bttvb$ a. o* U" L) }( t3 e5 ~
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 |