 |
| ||||
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 | |||||||||
求教这个公式的意思...In Reply To:Re:求此题解法。。。。 Posted by:qsort at 2010-05-09 17:27:13 求教这个公式的意思... > ans(n,k)=1(k==0) > else = > (k!)(k+1)^(n-k)-((k-1)!)(k)^(n-k+1) Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator
