 |
| ||||
Home Page
F.A.Qs
Statistical Charts
Past Contests
Scheduled Contests
Award Contest
| ||||||||||
| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
我刚才说错了，查找是log(n)的，看来也是O(n*long(n))的，不好意思。In Reply To:很显然可以O(n),假如有对称中心，(x=max(x)+min(x))/2,同理y,然后检查每个点是否有对称点。 Posted by:bupt at 2005-08-16 12:44:07 Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator
