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DATE 2015-03-01

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Key: archive_learn Value: 2015-03-01

Key: id Value: 543015

MESSAGE
DATE 2015-03-01
FROM Ruben
SUBJECT Subject: [LIU Comp Sci] Fwd: Re: Linked List Test Question
From owner-learn-outgoing-at-mrbrklyn.com Sun Mar 1 12:56:37 2015
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Message-ID: <54F352D2.60702-at-my.liu.edu>
Date: Sun, 01 Mar 2015 12:56:34 -0500
From: Ruben
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To: learn-at-nylxs.com
Subject: [LIU Comp Sci] Fwd: Re: Linked List Test Question
References: <781503C8-CEB4-4856-A980-10A1C75C54E4-at-liu.edu>
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-------- Forwarded Message --------
Subject: Re: Linked List Test Question
Date: Sun, 1 Mar 2015 12:18:10 +0000
From: Jose A. Rodriguez
To: Ruben



The question does not refer to any algorithm in particular. It just refers to the situation depicted. Pointer variable q is currently pointing to node containing 20. Pointer variable r is currently pointing to node containing 30. Pointer variable n is pointing to the new node to be inserted. So

q -> next = n; n->next = r;

is perfectly fine. So would be

n -> next = r; q-> next = n;

if that had been a choice.


How I got q and r to point to 20 and 30 is not relevant to the question.


> On Feb 28, 2015, at 11:54 PM, "Ruben" wrote:
>
>
> I'm looking at this question and I don't think it is right. In
> theory it is correct but in reality with the algorithm, you can't
> detach the upper part of the linked list and just assign it
> because it then ends up as lost pointer and leaked memory.
>
>
>
> That is why you always assign the value of q->next to your new
> node FIRST. Now you have a handle on the upper part of the list
> and you can now assign q->next with your new node address and your
> finished.
>
>
>
>
> Question 5
>
> 5 out of 10 points
>
>
>
> Partial Credit
>
> Consider the linked list in the handout. Which of the following
> correctly inserts node containing 25 between the nodes containing 20 and 30?
>
>
>
> Correctd.
>
> n->next = q->next;
>
> q->next = n;
>
> Answers:
> Correcta.
>
> q->next = n;
>
> n->next = r;
>
>
>
> b.
>
> p->next = n;
>
> n->next = r;
>
>
>
> c.
>
> q->next = n;
>
> n->next = q->next;
>
>
>
> Correctd.
>
> n->next = q->next;
>
> q->next = n;
>



  1. 2015-03-01 Ruben <ruben.safir-at-my.liu.edu> Subject: [LIU Comp Sci] Fwd: Re: Linked List Test Question
  2. 2015-03-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] [ruben-at-mrbrklyn.com: fork problem]
  3. 2015-03-03 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: fork problem
  4. 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms
  5. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Mid term in Allorithms
  6. 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms
  7. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Mid term in Allorithms
  8. 2015-03-04 Ruben Safir <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] Mid term in Allorithms
  9. 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms
  10. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Kanpsack problemi
  11. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Mid term in Allorithms
  12. 2015-03-05 Kamran <kamran.mirzayev-at-my.liu.edu> Re: [LIU Comp Sci] Canonical's 2015 OpenStack Roadshow
  13. 2015-03-05 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] Canonical's 2015 OpenStack Roadshow
  14. 2015-03-05 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Forks - Operating systems class
  15. 2015-03-06 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] KDE Mentoring -
  16. 2015-03-06 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] networking class
  17. 2015-03-07 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating Systems class submition
  18. 2015-03-08 From: "keisha.sylvester" <keisha.sylvester-at-my.liu.edu> RE: [LIU Comp Sci] Operating Systems Supplement Text
  19. 2015-03-08 Ruben <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] Operating Systems Supplement Text
  20. 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating systems HW
  21. 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating Systems Supplement Text
  22. 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Operating systems HW
  23. 2015-03-11 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Operating Systems class submition
  24. 2015-03-11 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] February Journal almost completed
  25. 2015-03-16 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] Operating Systems Chapter 3 HW complete
  26. 2015-03-16 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [ruben-at-mrbrklyn.com: os hw]
  27. 2015-03-17 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Fwd: NYC local: UNIGROUP 19-MAR-2015 (Thu): Penguin Computing presents
  28. 2015-03-19 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] LIU Center for Entrepreneurship + Innovation
  29. 2015-03-20 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Optimum
  30. 2015-03-20 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [jkeen-at-verizon.net: 2nd New York City Perl Hackathon: hold the
  31. 2015-03-22 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Kernel thread scheduling
  32. 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [jkeen-at-verizon.net: New York City Perl Hackathon 2015: Registration
  33. 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [vinc94-at-gmail.com: Re: Kernel thread scheduling]
  34. 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [xerofoify-at-gmail.com: Re: Kernel thread scheduling]
  35. 2015-03-23 Keisha Sylvester <keisha.sylvester-at-my.liu.edu> Re: [LIU Comp Sci] Meeting Announcement II
  36. 2015-03-23 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Meeting Announcement II
  37. 2015-03-23 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [gabor-at-szabgab.com: [Perlweekly] #191 - Hackathon after Hackathon]
  38. 2015-03-24 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] GNU/Linux 1
  39. 2015-03-24 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] GNU/Linux 1
  40. 2015-03-24 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] GNU/Linux 1
  41. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] GNU/Linux 1
  42. 2015-03-25 Ruben <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] GNU/Linux 1
  43. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] GNU/Linux 1
  44. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] decent threading outline that fills in where our notes let off
  45. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] I love this HW problem
  46. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Java Crimes
  47. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] jobs jobs
  48. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Threaded Programming example
  49. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Threads and Speed
  50. 2015-03-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Cpt 4 HW from pr 13-18
  51. 2015-03-26 Ruben <ruben.safir-at-my.liu.edu> Subject: [LIU Comp Sci] Fwd: [NYLXS - HANGOUT] GNU/Linux 1
  52. 2015-03-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Kernel Learning Resource - #1
  53. 2015-03-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] AVl Trees
  54. 2015-03-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Cpt 4 HW Programming Project 4-20 (and 3-20)
  55. 2015-03-28 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Jobs
  56. 2015-03-28 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] JOUNAL MEETING AT 10AM TOMORROW
  57. 2015-03-29 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Fwd: usage of dma_common_mmap
  58. 2015-03-30 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] HW 4.18 Problem

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