Online JudgeProblem SetAuthorsOnline ContestsUser
Web Board
Home Page
F.A.Qs
Statistical Charts
Problems
Submit Problem
Online Status
Prob.ID:
Register
Update your info
Authors ranklist
 Current Contest
Past Contests
Scheduled Contests
Award Contest
User ID:
Password:
  Register

原来是这样，难怪。

Posted by yygy at 2013-01-26 16:35:38 on Problem 1192
In Reply To:原来不难~没看到这句话，想了很久~ Posted by:choupigwb at 2008-11-17 20:41:43 
> 定义4 若整点集V满足：对于V中
> 的任何两个整点，
> V中有且仅有一条连接这两点的道路，                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 则V称为单整点集。
> 说明是颗树。
Followed by:
Post your reply here:
User ID:
Password:
Title:

Content:

Home Page   Go Back  To top

All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator