Detail of message

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

Re:请问：怎么递归啊？

Posted by ZSUKINGDOM at 2004-06-04 23:14:07 on Problem 1664
In Reply To:Re:请问：怎么递归啊？ Posted by:ggg at 2004-06-03 10:14:49

> x1+x2+x3+....xn=m,x1>=x2>=....>=xn
> 本题等价于求解上述方程的解的个数,令fun[k][n][m]表示x1=k时的个数,则
>  	for(j=0;j<=m-k&&j<=k;j++)
> 						{
> 							fun[k][n][m]+=fun[j][n-1][m-k];
> 						}

Followed by:

Re:请问：怎么递归啊？ (0) zsukingdom 2004-06-05 00:24:01
- Re:请问：怎么递归啊？ (468) ZSUKINGDOM 2004-06-05 00:25:05
  - Re:请问：怎么递归啊？ (2) ieee1 2004-07-01 13:14:36
  - Re:请问：怎么递归啊？ (540) lilove 2008-12-31 15:38:59

Post your reply here:

Home Page Go Back To top