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

来源: 于 2010-04-15 08:13:18 [旧帖] [给我悄悄话] 本文已被阅读：次

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