longest decreasing subsequence?

From: azxy (melsah333_at_yahoo.com)
Date: 05/25/04


Date: Tue, 25 May 2004 09:00:02 -0400


-?ld([9,5,2,8,7,4,1],L)
L=[9,8,7,4,1]

I try to find out longenst decreasing subsequence of a list?