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

Re:为什么就是求 n^2 的不大于 n 的因子个数啊~~哪位高人来解释一下吧

Posted by fly_away at 2006-08-22 19:54:23 on Problem 2917
In Reply To:为什么就是求 n^2 的不大于 n 的因子个数啊~~哪位高人来解释一下吧 Posted by:y05hcy at 2006-08-22 10:02:50
由1/x + 1/y = 1/z 得到 (x - z)(y - z) = z * z。这样知道了吧 

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