 |
| ||||
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 | |||||||||
二分比较快In Reply To:此题具有单调性～，可线性枚举。 Posted by:lvcheng at 2010-04-08 18:34:06 > 把素数表筛出来，然后二重循环头尾即可，有一个优化，注意到具有单调性，因此，枚举尾，维护头指针，可以做到线性求解，不过由于数据弱，好像两个都是0ms，呵呵～。 Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator
