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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>CS 2150: daily announcements slide set</title>
<meta name="description" content="A set of slides for a course on Program and Data Representation">
<meta name="author" content="Aaron Bloomfield">
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<section data-markdown><script type="text/template">
# CS 2150
### Program & Data Representation
### Spring 2020
<center><small><a href="http://www.cs.virginia.edu/~asb">Aaron Bloomfield</a> (aaron@virginia.edu)</small></center>
<center><small><a href="http://github.com/uva-cs/pdr">@github</a> | <a href="index.html">↑</a> | <a href="daily-announcements.html?print-pdf"><img class="print" width="20" src="../slides/images/print-icon.png"></a></small></center>
<p> </p>
<h2>Daily Announcements</h2>
</script></section>
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<section>
<section>
<h4 class="xkcd">Merlin</h4><img class="stretch" src="http://imgs.xkcd.com/comics/merlin.png" title="I mean, the black-and-white stuff was running backward, but it hardly mattered to the story." alt="Merlin"><p class="center"><a href="http://xkcd.com/270/">xkcd # 270</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 39: Mon, Apr 27th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- TA online office hours will continue this week
- But not Thursday, since that is the final
- Final exam
- It's Thursday evening from 7 p.m. to 10 p.m.
- It's in Collab; there is a sample test for you to take
- Review session Tuesday evening at 7 p.m.
- See details in the course email sent out this weekend
- Grades
- Only post-lab 9 and lab 11 grades are yet to be returned, and they should be back soon
- Lecture recordings are in Collab
- Today we will talk about [esoteric programming languages](../slides/13-esoteric-pls.html) and the wrap up with the [course conclusion](course-conclusion.html)
</script></section>
</section>
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<section data-markdown><script type="text/template">
## Fri, Apr 24th
- There was no lecture today
</script></section>
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<section>
<section>
<h4 class="xkcd">Travelling Sales[person] Problem</h4><img class="stretch" src="http://imgs.xkcd.com/comics/travelling_salesman_problem.png" title="What's the complexity class of the best linear programming cutting-plane techniques? I couldn't find it anywhere. Man, the Garfield guy doesn't have these problems ..." alt="Travelling Salesman Problem"><p class="center"><a href="http://xkcd.com/399/">xkcd # 399</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 38: Wed, Apr 22nd
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 11: Graphs](../labs/lab11/index.html) is out
- Like the previous ones, a lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Grades for labs 5, 6, and 7 were returned Sunday night; grading guidelines on Collab and regrades open for 10 days
- We are working on grading labs 8-10
- An email went out on Monday about the course structure; it's repeated on the two next slides
- There will not be a lecture Friday of this week; nor will there be a lab 12
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- But not this Friday since there is no lecture this Friday
- Today's lecture will finish [memory](../slides/12-memory.html#/)
</script></section>
<section data-markdown><script type="text/template">
## Emailed course announcements, 1/2
- Final exam
- The final exam will be at the normal time, which is Thursday, April 30th, from 7 pm to 10 pm Eastern time
- It will be an open note, online exam taken through Collab. The "open note" means anything that is in the course repo or notes that you have taken; it does not mean "open Internet".
- It will be timed, so you will have a fixed amount of time to complete the exam (that time will not be the full 3 hours since we are not expecting to give you a full-length final exam).
- Those who have extended time due to SDAC accommodations will get it, which I will handle in a separate email in a day or so.
- Those who have exam conflicts will also be handled in a separate email in a day or so.
- If you have significant time-zone issues, such as being in Europe which would cause the exam to be in the middle of the night, let me know via a response to this email.
- There will be an online final exam review session via Zoom; details to follow, but we are expecting it to be Tuesday evening.
- Labs & Lecture
- Labs 5-7 have just been returned; labs 8-10 are out being graded.
- We are hoping to have all the labs graded by the end of *next* week (i.e., the day after the final exam).
- There will be no lecture this Friday, but there will be one Monday and Wednesday of this week, as well as next Monday.
- Thus, there won't be a lecture discussion Friday, either.
- There will not be a lab 12 this semester.
</script></section>
<section data-markdown><script type="text/template">
## Emailed course announcements, 2/2
- Course grades
- The grading distribution will be 20% exam 1, 25% final, and 55% labs; the online gradebook does not yet have this new distribution factored into it yet.
- As per the provost's email, which you can see summarized here, the default grading is NC/GC/C: no credit, general credit, and credit. For this course, a letter grade of F would receive a grade of NC (no credit), a letter grade of D- through a D+ would receive a grad of GC (general credit), and a letter grade of C- or above will receive a grade of C (credit).
- Note that this is slightly different than what was in the provost's email: specifically that, for this course, a letter grade of C- will receive a grade of C (credit): effectively, to make this work, all those who would have received a letter grade of C- will be "promoted" to a letter grade of C.
- As for satisfying the CS 2150 pre-req, a grade of NC (no credit) or a grade of GC (general credit) will NOT count as having fulfilled the CS 2150 pre-req that is in place for most electives (similarly a letter grade of D+ or below doesn't count as fulfilling the pre-req).
</script></section>
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<section>
<section>
<h4 class="xkcd">NP-Complete</h4><img class="stretch" src="http://imgs.xkcd.com/comics/np_complete.png" title="General solutions get you a 50% tip." alt="NP-Complete"><p class="center"><a href="http://xkcd.com/287/">xkcd # 287</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 37: Mon, Apr 20th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 11: Graphs](../labs/lab11/index.html) is out
- Like the previous ones, a lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Grades for labs 5, 6, and 7 were returned last night; grading guidelines on Collab and regrades open for 10 days
- We are working on grading labs 8-10
- An email will go out later today to the entire class detailing the final exam, course grades, and lots of other info
- There will not be a lecture Friday of this week; nor will there be a lab 12
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- But not this Friday since there is no lecture this Friday
- Today's will finish [graphs](../slides/11-graphs.html#/) and start on [memory](../slides/12-memory.html#/)
</script></section>
</section>
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<section>
<section>
<h4 class="xkcd">Pillow Talk</h4><img class="stretch" src="http://imgs.xkcd.com/comics/pillow_talk.jpg" title="Maybe I should've tried Wexler?" alt="Pillow Talk"><p class="center"><a href="http://xkcd.com/69/">xkcd # 69</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 36: Fri, Apr 17th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 10: Huffman coding](../labs/lab10/index.html)
- There was a problem with the CS network yesterday, so everybody is getting an extra 24 hours to submit the post-lab
- [Lab 11: Graphs](../labs/lab11/index.html) is out
- Like the previous ones, a lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how they go -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- There will not be a lecture Friday of next week; nor will there be a lab 12
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: we have a bunch of labs to reutrn, which will all be coming back this weekend (assuming the CS network comes back up)
- Today's will continue [graphs](../slides/11-graphs.html#/), which will take us into next week
</script></section>
</section>
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<section>
<section>
<h4 class="xkcd">Dependencies</h4><img class="stretch" src="http://imgs.xkcd.com/comics/dependencies.png" title="The prereqs for CPSC 357, the class on package management, are CPSC 432, CPSC 357, and glibc2.5 or later." alt="Dependencies"><p class="center"><a href="http://xkcd.com/754/">xkcd # 754</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 35: Wed, Apr 15th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 10: Huffman coding](../labs/lab10/index.html) is out
- Like the previous ones, a lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how they go -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we are actually making progress in catching up
- Today's will continue [graphs](../slides/11-graphs.html#/), which will take us into next week
</script></section>
</section>
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<section>
<section>
<h4 class="xkcd">Applied Math</h4><img class="stretch" src="http://imgs.xkcd.com/comics/applied_math.png" title="Dear Reader: Enclosed is a check for ninety-eight cents. Using your work, I have proven that this equals the amount you requested." alt="Applied Math"><p class="center"><a href="http://xkcd.com/816/">xkcd # 816</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 34: Mon, Apr 13th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 10: Huffman coding](../labs/lab10/index.html) is out
- Like the previous ones, a lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how they go -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- We are planning on changing the TA office hours times -- details TBA (and will be emailed about)
- See the Piazza poll for details
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we are actually making progress in catching up
- Today's lecture finishes [heaps & Huffman coding](../slides/10-heaps-huffman.html#/) and starts on [graphs](../slides/11-graphs.html#/), which will take us into next week
</script></section>
</section>
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<section>
<section>
<h4 class="xkcd">Science Valentine</h4><img class="stretch" src="http://imgs.xkcd.com/comics/science_valentine.png" title="You don't use science to show that you're right, you use science to become right." alt="Science Valentine"><p class="center"><a href="http://xkcd.com/701/">xkcd # 701</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 33: Fri, Apr 10th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 10: Huffman coding](../labs/lab10/index.html) is out
- Like the previous ones, a lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how they go -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- We are planning on changing the TA office hours times -- details TBA (and will be emailed about)
- See the Piazza poll for details
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture continues with [heaps & Huffman coding](../slides/10-heaps-huffman.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">Security</h4><img class="stretch" src="http://imgs.xkcd.com/comics/security.png" title="Actual actual reality: nobody cares about his secrets. (Also, I would be hard-pressed to find that wrench for $5.)" alt="Security"><p class="center"><a href="http://xkcd.com/538/">xkcd # 538</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 32: Wed, Apr 8th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 9: assembly](../labs/lab09/index.html) is out
- A lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how they go -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture continues with [heaps & Huffman coding](../slides/10-heaps-huffman.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">Collatz Conjecture</h4><img class="stretch" src="http://imgs.xkcd.com/comics/collatz_conjecture.png" title="The Strong Collatz Conjecture states that this holds for any set of obsessively-hand-applied rules." alt="Collatz Conjecture"><p class="center"><a href="http://xkcd.com/710/">xkcd # 710</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 31: Mon, Apr 6th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 9: assembly](../labs/lab09/index.html) is out
- A lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how they go -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture continues with [heaps & Huffman coding](../slides/10-heaps-huffman.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">Surgery</h4><img class="stretch" src="http://imgs.xkcd.com/comics/surgery.png" title="Damn. Not only did he not install it, he sutured a 'Vista-Ready' sticker onto my arm." alt="Surgery"><p class="center"><a href="http://xkcd.com/644/">xkcd # 644</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 30: Fri, Apr 3rd
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 9: assembly](../labs/lab09/index.html) will be out later today
- A lot of work will be removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- TA online office hours and labs this week
- Please let us know how it went -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture finishes [advanced C++](../slides/09-advanced-cpp.html#/) and starts on [heaps & Huffman coding](../slides/10-heaps-huffman.html#/)
</script></section>
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<section>
<h4 class="xkcd">Abstraction</h4><img class="stretch" src="http://imgs.xkcd.com/comics/abstraction.png" title="If I'm such a god, why isn't Maru *my* cat?" alt="Abstraction"><p class="center"><a href="http://xkcd.com/676/">xkcd # 676</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 29: Wed, Apr 1st
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 8: assembly](../labs/lab08/index.html) is out
- A lot of work was removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- Lab 9 will also be undergoing significant changes (removing material), so please wait to start it
- It should be out tomorrow
- TA online office hours and labs this week
- Please let us know how it went -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture finishes [advanced C++](../slides/09-advanced-cpp.html#/)
</script></section>
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<section>
<h4 class="xkcd">Tabletop Roleplaying</h4><img class="stretch" src="http://imgs.xkcd.com/comics/tabletop_roleplaying.png" title="I may have also tossed one of a pair of teleportation rings into the ocean, with interesting results." alt="Tabletop Roleplaying"><p class="center"><a href="http://xkcd.com/244/">xkcd # 244</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 28: Mon, Mar 30th
- A reminder about the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 8: assembly](../labs/lab08/index.html) is out
- A lot of work was removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- Lab 9 will also be undergoing significant changes (removing material), so please wait to start it
- TA online office hours and labs this week
- Please let us know how it went -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- We will likely be making tweaks
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture finishes [assembly](../slides/08-assembly-64bit.html#/) and starts on [advanced C++](../slides/09-advanced-cpp.html#/)
</script></section>
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<section>
<h4 class="xkcd">Single Ladies</h4><img class="stretch" src="http://imgs.xkcd.com/comics/single_ladies.png" title="Using a ring to bind someone you covet into your dark and twisted world? Wow, just got the subtext there. Also, the apparently eager Beyoncé would've made one badass Nazgûl." alt="Single Ladies"><p class="center"><a href="http://xkcd.com/712/">xkcd # 712</a></p>
</section>
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## Lecture 27: Fri, Mar 27th
- If you haven't already, please read the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 8: assembly](../labs/lab08/index.html) is out for next week
- A lot of work was removed, so be sure to view the updated version
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- Lab 9 will also be undergoing significant changes (removing material), so please wait to start it
- TA online office hours and labs this week
- Please let us know how it went -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- We will likely be making tweaks
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- But won't be held at 10 am this Friday
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture is on [assembly](../slides/08-assembly-64bit.html#/), which will take us into next week
</script></section>
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<section>
<h4 class="xkcd">Git Commit</h4><img class="stretch" src="http://imgs.xkcd.com/comics/git_commit.png" title="Merge branch 'asdfasjkfdlas/alkdjf' into sdkjfls-final" alt="Git Commit"><p class="center"><a href="http://xkcd.com/1296/">xkcd # 1296</a></p>
</section>
<section data-markdown><script type="text/template">
## Lecture 26: Wed, Mar 25th
- If you haven't already, please read the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 7: IBCM](../labs/lab07/index.html) is due this week
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- Labs 8 and 9 will be undergoing significant changes (removing material), so please wait to start them
- Lab 8 will be ready tomorrow to start
- TA online office hours and labs this week
- Please let us know how it went -- [anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main) is great for that
- We will likely be making tweaks
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- But won't be held at 10 am this Friday
- Grading: it got delayed due to the move online; we'll work on getting caught up
- Today's lecture is on [assembly](../slides/08-assembly-64bit.html#/), which will take us into next week
</script></section>
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<h2 class='xkcd'>2010 and 2020</h2><img class='stretch' src="http://imgs.xkcd.com/comics/2010_and_2020.png" title="2030: "I just bought a house for one bitcoin. No, it's the equivalent of a dollar. Houses are often transferred for a nominal fee because the buyer is taking responsibility for containing the holo-banshees in the attic."" alt="2010 and 2020" srcset="http://imgs.xkcd.com/comics/2010_and_2020_2x.png 2x"><p class='center'><a href='http://xkcd.com/2280/'>xkcd # 2280</a></p>
</section>
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## Lecture 25: Mon, Mar 23rd
- If you haven't already, please read the [Online Course Structure](online.html) page
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 7: IBCM](../labs/lab07/index.html) is due this week
- Note that pre-labs and in-labs are now due Wed @ 8 am; post-labs still due Fri @ 10 am
- Labs 8 and 9 will be undergoing significant changes (removing material), so please wait to start them
- TA online office hours yesterday
- We will likely be making tweaks
- TA office hours are the same times as before: 6-10 on Sun, Mon, Wed, and Thu
- Tuesday's labs will become an extended set of office hours
- Lecture recordings are in Collab
- Lecture discussions are M/W/F during the normal lecture times (10-10:50 and 1-1:50)
- But the 1 pm one won't be held today, and the 10 am won't be held this Friday
- Grading: it got delayed due to the move online; we'll work on getting caught up
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
</script></section>
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<section>
<h4 class="xkcd">Fight</h4><img class="stretch" src="http://imgs.xkcd.com/comics/fight.png" title="And she put sweet nothings in all my .conf files. It'll take me forever to get X working again." alt="Fight"><p class="center"><a href="http://xkcd.com/340/">xkcd # 340</a></p>
</section>
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## Lecture 23: Mon, Mar 6th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- We won't have any over spring break, obviously
- It is unclear as to whether we will have TA office hours on the last Sunday of spring break...
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 6](../labs/lab06/index.html) and the tutorial (shell scripting) are out -- how are they going?
- Grading issues
- The grading guidelines for the exam 1 are on the Collab wiki, regrades are open until the Friday after spring break
- Lab 2 post-lab: can regrade memory allocation for a few more days
- Grades returned through lab 4, and lab 5 is out to be graded
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab and feels very loney
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- [WiCS](https://www.wicsatuva.com/) is having a "Hacks of Kindness" Hack-a-thon on March 21st. Interested? See http://tinyurl.com/wics2020
- Today we will likely finish with [IBCM](../slides/07-ibcm.html#/) (machine language)
</script></section>
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<h4 class="xkcd">Success</h4><img class="stretch" src="http://imgs.xkcd.com/comics/success.png" title="40% of OpenBSD installs lead to shark attacks. It's their only standing security issue." alt="Success"><p class="center"><a href="http://xkcd.com/349/">xkcd # 349</a></p>
</section>
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## Lecture 22: Mon, Mar 4th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- We won't have any over spring break, obviously
- It is unclear as to whether we will have TA office hours on the last Sunday of spring break...
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 6](../labs/lab06/index.html) and the tutorial (shell scripting) are out -- how are they going?
- Grading issues
- The grading guidelines for the exam 1 are on the Collab wiki, regrades are open until the Friday after spring break
- Lab 2 post-lab
- Due to Macs being unable to check for deallocation, we are not going to take points off for not properly deallocating
- The regrades for post-lab 2 have been re-opened (for 6 more days), and you can submit a regrade for those 2 points back
- Grades returned through lab 4, and lab 5 is out to be graded
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab and feels very loney
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- [WiCS](https://www.wicsatuva.com/) is having a "Hacks of Kindness" Hack-a-thon on March 21st. Interested? See http://tinyurl.com/wics2020
- Today we will continue with [IBCM](../slides/07-ibcm.html#/) (machine language), which will take us most (all?) of this week
</script></section>
<section data-markdown id="exam1issue"><script type="text/template">
## Exam 1 issues
- My grand solution to not count question 14 (the big-Theta question) was met with a lackluster reception
- So, taking into account the fact that you all disliked my solution...
- Question 14 has now been regraded
- The new average for the exam is 31.44/60 (65.5%) with a stdev of 8.6 (17.8%)
- The curve will still be 15 *percentage* points
- The grading guidelines will be released later today, and the regrades open for "10" days
- Until the Friday *after* spring break
- So here 10 days == 19 days (see! 10 is a prime number!)
- If there are any other concerns with that question, please submit a regrade
- Please be aware of the [frivolous regrade policy](frivolous-regrades.html) before you submit a regrade!
</script></section>
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<h4 class="xkcd">Ballmer Peak</h4><img class="stretch" src="http://imgs.xkcd.com/comics/ballmer_peak.png" title="Apple uses automated schnapps IVs." alt="Ballmer Peak"><p class="center"><a href="http://xkcd.com/323/">xkcd # 323</a></p>
</section>
<section data-markdown><script type="text/template">
## Pop Quiz!
I have worked on [Lab 6](../../labs/lab06/index.html) (lists), and I think:
1. It's easy!
2. It's hard, but doable
3. It's insane! Where do you get off assigning this much work?
4. I'm not talking to you. Ever. Again.
5. I wasnt' speaking to you since lab 2 anyway...
</script></section>
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## Lecture 21: Mon, Mar 2nd
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 6](../labs/lab06/index.html) and the tutorial (shell scripting) are out -- how are they going?
- This is perhaps not the easiest lab, so please don't wait until the last minute to start it
- Status of the [first exam](../exams/exam1-s20.pdf): see next slide
- Grades returned through lab 4
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab and feels very loney
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Today we will start [IBCM](../slides/07-ibcm.html#/) (machine language), which will take us most (all?) of this week
</script></section>
<section data-markdown><script type="text/template">
## Exam 1 issues
- My grand solution to not count question 14 (the big-Theta question) was met with a lackluster reception
- So, taking into account the fact that you all disliked my solution...
- Question 14 has now been regraded
- The new average for the exam is 31.44/60 (65.5%) with a stdev of 8.6 (17.8%)
- The curve will still be 15 *percentage* points
- The grading guidelines will be released later today, and the regrades open for "10" days
- Until the Friday *after* spring break
- So here 10 days == 19 days (see! 10 is a prime number!)
- If there are any other concerns with that question, please submit a regrade
- Please be aware of the [frivolous regrade policy](frivolous-regrades.html) before you submit a regrade!
</script></section>
</section>
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<section>
<h4 class="xkcd">Devotion to Duty</h4><img class="stretch" src="http://imgs.xkcd.com/comics/devotion_to_duty.png" title="The weird sense of duty really good sysadmins have can border on the sociopathic, but it's nice to know that it stands between the forces of darkness and your cat blog's servers." alt="Devotion to Duty"><p class="center"><a href="http://xkcd.com/705/">xkcd # 705</a></p>
</section>
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## Lecture 20: Fri, Feb 28th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- But I won't have any today... :-(
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 5](../labs/lab05/index.html): how did it go?
- [Lab 6](../labs/lab06/index.html) and the tutorial (shell scripting) are out
- This is perhaps not the easiest lab, so please don't wait until the last minute to start it
- Status of the [first exam](../exams/exam1-s20.pdf): see next slide
- Grades returned through lab 4
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab and feels very loney
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Today we will continue (and likely finish) with [hashes](../slides/06-hashes.html#/)
- Next up: [IBCM](../slides/07-ibcm.html#/) (machine language)
</script></section>
<section data-markdown><script type="text/template">
## Exam 1 issues
- Question 14 (the big-Theta proof) was graded incorrectly
- This was my fault, as I didn't prep those grading it regrading how I went over it in class
- What will happen is that this question will not count at all toward the exam score
- So the exam will be out of 42 points rather than 48 points
- All of your exams will be re-generated with the updated scoring, although the comments will remain
- This will take some time to do -- hopefully by Monday
- At that point, the grading guidelines will be released and regrades will open
- The regrades will stay open until well after spring break
- Please be aware of the [frivolous regrade policy](frivolous-regrades.html) before you submit a regrade!
- The curve will still be 15 *percentage* points
</script></section>
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<section>
<h4 class="xkcd">Black Hat Support</h4><img class="stretch" src="http://imgs.xkcd.com/comics/black_hat_support.png" title="So as not to leave you hanging -- it was a problem with select() calls." alt="Black Hat Support"><p class="center"><a href="http://xkcd.com/278/">xkcd # 278</a></p>
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## Lecture 19: Wed, Feb 26th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- But I won't have any today... :-(
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 5](../labs/lab05/index.html): how is it going?
- Status of the [first exam](../exams/exam1-s20.pdf)
- The release of the grading guidelines (and opening of the regrades) is delayed while I work out a clarification
- The curve will be 15 *percentage* points
- Please be aware of the [frivolous regrade policy](frivolous-regrades.html) before you submit a regrade!
- Grades returned through lab 4
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab and feels very loney
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- A Girls Who Code chapter is starting up here at UVa
- Interested? See http://tinyurl.com/gwcuvagm or @gwcuva on twitter
- First meeting is Wed, Feb 26 @ 6pm in Mec 341
- Today we will continue with [hashes](../slides/06-hashes.html#/), which will take us through the end of this week
</script></section>
</section>
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<section>
<h4 class="xkcd">The Economic Argument</h4><img class="stretch" src="http://imgs.xkcd.com/comics/the_economic_argument.png" title="Not to be confused with 'making money selling this stuff to OTHER people who think it works', which corporate accountants and actuaries have zero problems with." alt="The Economic Argument"><p class="center"><a href="http://xkcd.com/808/">xkcd # 808</a></p>
</section>
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## Lecture 18: Mon, Feb 24th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- But I won't have any today... :-(
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 5](../labs/lab05/index.html): how is it going?
- Status of the [first exam](../exams/exam1-s20.pdf)
- The release of the grading guidelines (and opening of the regrades) is delayed while I work out a clarification
- The curve will be 15 *percentage* points
- Please be aware of the [frivolous regrade policy](frivolous-regrades.html) before you submit a regrade!
- Grades
- Grades returned through lab 2
- Labs 3 and 4 will be back today -- we're all caught up!
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab and feels very loney
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- A Girls Who Code chapter is starting up here at UVa
- Interested? See http://tinyurl.com/gwcuvagm or @gwcuva on twitter
- First meeting is Wed, Feb 26 @ 6pm in Mec 341
- Today we will finish with [trees](../slides/05-trees.html#/) and start on [hashes](../slides/06-hashes.html#/)
- We are going to skip the last two columns in the trees slide set (splay and applications) for now and come back to it so we can start [hashes](../slides/06-hashes.html#/) in time for lab 6
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<section>
<h4 class="xkcd">Academia vs. Business</h4><img class="stretch" src="http://imgs.xkcd.com/comics/academia_vs_business.png" title="Some engineer out there has solved P=NP and it's locked up in an electric eggbeater calibration routine. For every 0x5f375a86 we learn about, there are thousands we never see." alt="Academia vs. Business"><p class="center"><a href="http://xkcd.com/664/">xkcd # 664</a></p>
</section>
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## Lecture 17: Fri, Feb 21st
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- We'll go over the [first exam](../exams/exam1-s20.pdf)
- Grading guidelines will be released later today, at which point regrades will open for 10 days
- Please be aware of the [frivolous regrade policy](frivolous-regrades.html) before you submit a regrade!
- Grades returned through lab 2
- We are catching up with lab 3
- Lab 4 is out to be graded
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Today we will continue with [trees](../slides/05-trees.html#/), which will take us into next week
- We are going to skip the last two columns in the trees slide set (splay and applications) for now and come back to it so we can start [hashes](../slides/06-hashes.html#/) in time for lab 6
</script></section>
</section>
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<section>
<h4 class="xkcd">Real Programmers</h4><img class="stretch" src="http://imgs.xkcd.com/comics/real_programmers.png" title="Real programmers set the universal constants at the start such that the universe evolves to contain the disk with the data they want." alt="Real Programmers"><p class="center"><a href="http://xkcd.com/378/">xkcd # 378</a></p>
</section>
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## Lecture 16: Wed, Feb 19th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- However, they are cancelled for today and possibly tomorrow (will update about tomorrow's status on the twitter feed)
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- How was the first exam?
- Not sure why the bubble footer didn't copy properly...
- We'll go over it on Friday
- Grades
- Grades returned through lab 2
- We are catching up with lab 3
- Lab 4 is out to be graded
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Today we will continue with [trees](../slides/05-trees.html#/), which will take us into next week
</script></section>
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<section>
<h4 class="xkcd">Sandwich</h4><img class="stretch" src="http://imgs.xkcd.com/comics/sandwich.png" title="Proper User Policy apparently means Simon Says." alt="Sandwich"><p class="center"><a href="http://xkcd.com/149/">xkcd # 149</a></p>
</section>
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## Lecture 15: Mon, Feb 17th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- OH will be cancelled Wed & Thu of this week
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- Grades
- Lab 1 returned; lab 2 should be back today
- We are catching up with lab 3
- Lab 4 is out to be graded
- Tomorrow is the first midterm! Yay!!!
- Material coverage is through the end of the [arrays & big-Oh](../slides/04-arrays-bigoh.html#/) slide set
- Note that the TAs will not answer "what is the answer to this question" on Piazza
- You must bring ID!
- Unix honor pledge will be on the last page of the exam
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Today we will start on [trees](../slides/05-trees.html#/), which will take us into next week
</script></section>
</section>
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<section>
<h4 class="xkcd">Bug</h4><img class="stretch" src="http://imgs.xkcd.com/comics/bug.png" title="The universe started in 1970. Anyone claiming to be over 38 is lying about their age." alt="Bug"><p class="center"><a href="http://xkcd.com/376/">xkcd # 376</a></p>
</section>
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## Lecture 14: Fri, Feb 14th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- OH will be cancelled Wed & Thu of next week
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- Grades from lab 1 returned
- Lab 2 grading is delayed by a week; this may delay Lab 3...
- [Lab 4](../labs/lab04/index.html) (numbers): how did it go?
- Next week is the first midterm! Yay!!!
- Material coverage is through the end of the [arrays & big-Oh](../slides/04-arrays-bigoh.html#/) slide set
- Note that the TAs will not answer "what is the answer to this question" on Piazza
- Review sessions
- Professor Bloomfield will run one on Sunday evening, details TBA
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Interested in declaring the BA CS major? http://bit.ly/apply-bacs-s20
- Today we will likely finish with [Arrays & big-Oh](../slides/04-arrays-bigoh.html#/)
- Next up: [trees](../slides/05-trees.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">Code Talkers</h4><img class="stretch" src="http://imgs.xkcd.com/comics/code_talkers.png" title="As far as I can tell, Navajo doesn't have a common word for 'zero'. do-neh-lini means 'neutral'." alt="Code Talkers"><p class="center"><a href="http://xkcd.com/257/">xkcd # 257</a></p>
</section>
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## Lecture 13: Wed, Feb 12th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- Grades from lab 1 returned
- Lab 2 grading is delayed by a week; this may delay Lab 3...
- [Lab 4](../labs/lab04/index.html) (numbers): how is it going?
- Next week is the first midterm! Yay!!!
- We'll talk about content coverage cut-off on Friday
- Note that the TAs will not answer "what is the answer to this question" on Piazza
- Review sessions
- TA led review session today (Wed) at 8 pm in Olsson 005 on: general memory layout, pointers/references, and dynamic memory allocation
- Professor Bloomfield will run one on Sunday evening, details TBA
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Interested in declaring the BA CS major? http://bit.ly/apply-bacs-s20
- Today we will continue with [Arrays & big-Oh](../slides/04-arrays-bigoh.html#/), likely finishing on Friday
- Next up: [trees](../slides/05-trees.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">e to the pi Minus pi</h4><img class="stretch" src="http://imgs.xkcd.com/comics/e_to_the_pi_minus_pi.png" title="Also, I hear the 4th root of (9^2 + 19^2/22) is pi." alt="e to the pi Minus pi"><p class="center"><a href="http://xkcd.com/217/">xkcd # 217</a></p>
</section>
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## Lecture 12: Mon, Feb 10th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- [Lab 4](../labs/lab04/index.html) (numbers): how is it going?
- Past labs
- Lab 1 grades have been returned: grading guidelines on Collab, and regrades open for 10 days
- Lab 2 should be back today?
- [Lab 3](../labs/lab03/index.html) (stacks) is out to be graded
- Next week is the first midterm! Yay!!!
- We'll talk about content coverage cut-off on Friday
- There will be a review session; details TBA (likely Sunday night)
- Note that the TAs will not answer "what is the answer to this question" on Piazza
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Interested in declaring the BA CS major? http://bit.ly/apply-bacs-s20
- Today we will finish with [Numbers](../slides/03-numbers.html#/)
- Next up: [Arrays & big-Oh](../slides/04-arrays-bigoh.html#/)
</script></section>
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## C++ and error messages
From an anonymous CS 2150 student:
<p class="fragment" style="text-align:center">Which is a great lead-in to...<br>
<a href="https://tgceec.tumblr.com/">The Grand C++ Error Explosion Competition</a></p>
</script></section>
</section>
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<section>
<h2 class='xkcd'>Can't Sleep</h2><img class='stretch' src="http://imgs.xkcd.com/comics/cant_sleep.png" title="If androids someday DO dream of electric sheep, don't forget to declare sheepCount as a long int." alt="Can't Sleep" ><p class='center'><a href='http://xkcd.com/571/'>xkcd # 571</a></p>
</section>
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## Lecture 11: Fri, Feb 7th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- Lab 1 grades have been returned: grading guidelines on Collab, and regrades open for 10 days
- [Lab 3](../labs/lab03/index.html) (stacks) and the tutorial: how did it go?
- [Lab 4](../labs/lab04/index.html) (numbers) and the tutorial are out
- The week after next is the first midterm! Yay!!!
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Interested in declaring the BA CS major? http://bit.ly/apply-bacs-s20
- Today we will continue with [Numbers](../slides/03-numbers.html#/), expecting to finish that on Monday
- Next up: [Arrays & big-Oh](../slides/04-arrays-bigoh.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">Compiling</h4><img class="stretch" src="http://imgs.xkcd.com/comics/compiling.png" title="'Are you stealing those LCDs?' 'Yeah, but I'm doing it while my code compiles.'" alt="Compiling"><p class="center"><a href="http://xkcd.com/303/">xkcd # 303</a></p>
</section>
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## Lecture 10: Wed, Feb 5th
- Office hours are in full swing
- Professor OH are Mon 11-12, Wed 12-1, and Fri 9-10
- TA office hours are 6-10 on Sun, Mon, Wed, and Thu in the Thornton stacks
- Our twitter announcement feed is [@UVaCS2150](https://twitter.com/@UVaCS2150)
- Lab 1 grades have been returned: grading guidelines on Collab, and regrades open for 10 days
- [Lab 3](../labs/lab03/index.html) (stacks) and the tutorial are out: how are they going?
- Lab 4 will be out tomorrow, and we'll see enough material by Friday for it
- [Anonymous feedback](https://collab.its.virginia.edu/portal/site/c7acc486-f2bd-418a-ad92-c91ae5e03503/tool/3756aebf-1299-4343-809a-7cf9e58a8d48/main)! It's through Collab
- Lectures are recorded in Collab
- [Readings](../docs/readings.html) are optional, and are posted in the git repo
- Interested in declaring the BA CS major? http://bit.ly/apply-bacs-s20
- Anybody interested in being an SDAC note taker? If so, please contact me
- Today we will continue with [Numbers](../slides/03-numbers.html#/)
</script></section>
</section>
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<section>
<h4 class="xkcd">RPS</h4><img class="stretch" src="http://imgs.xkcd.com/comics/rps.png" title="It looks good, but it needs more postfixins." alt="RPS"><p class="center"><a href="http://xkcd.com/645/">xkcd # 645</a></p>
</section>