回複：SAP智力題--Hard to meet twice★★★★★★

來源: 於 2009-10-10 18:08:37 [舊帖] [給我悄悄話] 本文已被閱讀：次

走阿基米的羅線,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)