1. put 6 on each side of the scale to get the heavier side
% |$ D7 m9 ?" S8 q6 N' b/ t* {5.39.217.772. take off any two balls from the more heavier side (among 6 balls) and put 2 on each side of the scale to weigh and get the heavier side(which are 2 balls) {if at this moment the scale is balanced, then weigh the 2 balls which we took out before} {if at this moment the scale is not balanced, then go 3}5.39.217.774 `6 P( @ d3 P8 ?
3. put one on each side to weigh and get the heavier one. |