Problem 1002 最后一组是不是错了?

12160011044 | 2014-11-01 20:34:19Author
5 1 1 2 2 2 总共有3个上升子序列 1 2 1 2 所以答案不应该是1吗?
admin | 2014-11-01 20:37:15# 1
RE:最后一组是不是错了?
No response. Please read problem carefully.