Hard to meet twice ★★★★★★
Three trees make an equilateral triangle ABC. There are three mice a,b,c. They began to move simultaneously at the same speed, a from A to B, b from B to C, c from C to A, not necessarily via straight routes. Each one moved closer to its individual target by each step. And eventually everyone reached its target at same time. During the process, a and b met twice, b and c met twice, c and a met twice. Is it possible?
----Designed by Hansen Chen in 2009( https://www.sdn.sap.com/irj/scn/forum?forumID=410 )
看跟贴，写的明明白白，代表国家解题，争的就是民族气节。哪位大牛出马，别让外国人耀武扬威。
Three trees make an equilateral triangle ABC. There are three mice a,b,c. They began to move simultaneously at the same speed, a from A to B, b from B to C, c from C to A, not necessarily via straight routes. Each one moved closer to its individual target by each step. And eventually everyone reached its target at same time. During the process, a and b met twice, b and c met twice, c and a met twice. Is it possible?
----Designed by Hansen Chen in 2009( https://www.sdn.sap.com/irj/scn/forum?forumID=410 )
看跟贴，写的明明白白，代表国家解题，争的就是民族气节。哪位大牛出马，别让外国人耀武扬威。
