1. 1st divide to half take the heavier out
$ B4 E$ @1 } e0 L' ~$ C1 g公仔箱論壇2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)
0 f1 n/ ]- y9 N7 y* p4 x0 @- m. P2 Ptvb now,tvbnow,bttvb3. Same method if is not equal on 2nd try. |