[理工] OS+演算法 四個問題
[103交大資演 9. (9)(10)] 判斷是P還是NPC
(9) Find a maximum independent set in an interval graph
Maximum independent set 不是可以從vertex cover reduced 來嗎?所以不是NPC? 答案
給是P, 不過我印象中上課老師說maximum independent set 是NPC problem
(10) The 2-CNF satisfiability problem
我看Satisfiable probelm定義是:給定一個CNF, 判斷是否存在一組解使得此CNF為True,
若存在則稱此CNF為Satisfiable. 可是答案給2-CNF is P problem?
[104交大資演 22.(A)]
For the two functions f(n) and g(n),either f(n)=O(g(n)) or f(n)=Big omega(g(n))
答案說這敘述是錯,還有其他種可能?
[104台大電機OS]
Interrupt handling need preserve the register contents of the interrupted
processes
想問這敘述錯在哪?
[102台大電機資演]
The complement graph of a non-empty graph must contain at least one clique
這敘述是對的?
以上疑問,謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.112.25.105
※ 文章網址: https://www.ptt.cc/bbs/Grad-ProbAsk/M.1483263600.A.861.html
推
01/01 17:44, , 1F
01/01 17:44, 1F
推
01/01 17:47, , 2F
01/01 17:47, 2F
推
01/01 18:11, , 3F
01/01 18:11, 3F
推
01/01 18:19, , 4F
01/01 18:19, 4F
→
01/01 18:24, , 5F
01/01 18:24, 5F
→
01/01 18:24, , 6F
01/01 18:24, 6F
→
01/01 19:17, , 7F
01/01 19:17, 7F
→
01/01 20:06, , 8F
01/01 20:06, 8F
→
01/01 20:06, , 9F
01/01 20:06, 9F
→
01/01 20:07, , 10F
01/01 20:07, 10F
→
01/01 20:07, , 11F
01/01 20:07, 11F
→
01/01 20:07, , 12F
01/01 20:07, 12F
→
01/01 21:51, , 13F
01/01 21:51, 13F
→
01/01 21:51, , 14F
01/01 21:51, 14F
→
01/01 21:51, , 15F
01/01 21:51, 15F
→
01/01 21:51, , 16F
01/01 21:51, 16F
→
01/01 21:58, , 17F
01/01 21:58, 17F
→
01/01 22:21, , 18F
01/01 22:21, 18F
推
01/02 10:02, , 19F
01/02 10:02, 19F
→
01/02 10:02, , 20F
01/02 10:02, 20F
→
01/02 10:02, , 21F
01/02 10:02, 21F
→
01/02 10:02, , 22F
01/02 10:02, 22F
→
01/02 12:02, , 23F
01/02 12:02, 23F
→
01/02 12:02, , 24F
01/02 12:02, 24F
→
01/02 12:05, , 25F
01/02 12:05, 25F
→
01/02 12:08, , 26F
01/02 12:08, 26F
→
01/02 12:44, , 27F
01/02 12:44, 27F
推
01/02 13:03, , 28F
01/02 13:03, 28F
→
01/02 13:03, , 29F
01/02 13:03, 29F
→
01/02 13:07, , 30F
01/02 13:07, 30F
→
01/02 13:52, , 31F
01/02 13:52, 31F
→
01/02 13:52, , 32F
01/02 13:52, 32F
推
01/02 14:43, , 33F
01/02 14:43, 33F
→
01/02 14:43, , 34F
01/02 14:43, 34F
→
01/02 15:01, , 35F
01/02 15:01, 35F
→
01/02 15:01, , 36F
01/02 15:01, 36F
→
01/02 21:52, , 37F
01/02 21:52, 37F
→
01/02 21:53, , 38F
01/02 21:53, 38F
→
01/02 21:54, , 39F
01/02 21:54, 39F
→
01/02 22:04, , 40F
01/02 22:04, 40F
→
01/02 22:07, , 41F
01/02 22:07, 41F
→
01/02 22:09, , 42F
01/02 22:09, 42F
→
01/02 22:09, , 43F
01/02 22:09, 43F
→
01/02 22:09, , 44F
01/02 22:09, 44F
→
01/02 22:11, , 45F
01/02 22:11, 45F
→
01/02 22:12, , 46F
01/02 22:12, 46F
→
01/02 22:12, , 47F
01/02 22:12, 47F
→
01/02 22:13, , 48F
01/02 22:13, 48F