I'm sorry for typing ; thang for thank,Erler for Euler

來源: 2010-04-15 08:13:18 [舊帖] [給我悄悄話] 本文已被閱讀:

Find a Hph is not difficult,but find the best (Exp:best path for 200 cities trip road)is not easy,we meet 組合爆炸.