作业帮complexity theory的问题,懂的进来
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/11 01:43:52
complexity theory的问题,懂的进来
两道证明题：
(1)A complexity class C is closed under polynomial time reductions if,whenever A ≤pB and B ∈C,
then A ∈C.Show that RP,BPP and PP are closed under polynomial time reductions.
(2)Show that PP is closed under complementation.That is,if A ∈PP,then A ∈ PP.
最后一个A应该是A拔，A上面那一横画不出来。
两道证明题：
(1)A complexity class C is closed under polynomial time reductions if,whenever A ≤pB and B ∈C,
then A ∈C.Show that RP,BPP and PP are closed under polynomial time reductions.
(2)Show that PP is closed under complementation.That is,if A ∈PP,then A ∈ PP.
最后一个A应该是A拔，A上面那一横画不出来。
(1) RP的问题.
用反证法,假设有一个a< L,a 1/2,取反就是把
用反证法,假设有一个a< L,a 1/2,取反就是把