回复：回复：回复：有一题大家可以试试

来源: 于 2005-01-23 16:28:31 [旧帖] [给我悄悄话] 本文已被阅读：次

Get your point. The problem reduces to that given a square ABCD. Start from A, reach CD at E, then back to D. By intuition, the solution is let E be the midle point of CD, go though AEB.
The total is: (sqr(5) + Pi + 1)*10 = 63.7...