回复：SAP智力题--Hard to meet twice★★★★★★

来源: 于 2009-10-10 18:08:37 [旧帖] [给我悄悄话] 本文已被阅读：次

走阿基米的罗线,可以遇到N次
if N is the crossing points, a is the distance, a/N decide by r = bθ , 2pi*b=a/N/2/sqrt(3)