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

why is the second sample "NO"?

Posted by yw1984 at 2007-06-03 12:47:16 on Problem 3238
Harry puts head on (1,1) and let Sally choose what to put at (2,2). If Sally puts a tail, then Harry has no valid move. Am I not understanding it correctly?

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