| ||||||||||
| 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 | |||||||||
由于是三点不共线的,所以总是可以找到一条直线把一个大区域划分为两个小区域,而且两个小区域中的两种颜色的点的个数是相同的,直到划分到一个区域内只有两个颜色不一样的点的时候就可以了。In Reply To:这个怎么构造呢 想不到 Posted by:insotc at 2008-12-08 11:20:27 Followed by:
Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator