Difference between revisions of "CISC220 F2023"

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|AVL trees: applying rotations to restore balance property; PQ ADT, comparison of implementation efficiencies
 
|AVL trees: applying rotations to restore balance property; PQ ADT, comparison of implementation efficiencies
 
|Drozdek 6.7-6.7.2 (skip 6.7.1); 4.3, 4.6 (PQs)
 
|Drozdek 6.7-6.7.2 (skip 6.7.1); 4.3, 4.6 (PQs)
|
+
|[https://drive.google.com/file/d/1xjRvqCxN_CH-xOlaofwY6A4O0D38_es7/view?usp=sharing STL PQ example]
 
|-
 
|-
 
|style="background:rgb(245, 222, 179)"|
 
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|style="background:rgb(102, 204, 255)"|14
 
|style="background:rgb(102, 204, 255)"|14
 
|Oct. 17
 
|Oct. 17
|Heap implementation of priority queues (NOT on midterm -- midterm review will be YouTube link)
+
|Heap implementation of priority queues<br> (NOT on midterm -- see midterm review material in Links column)
 
|Heap implementation details, complexity analysis
 
|Heap implementation details, complexity analysis
 
|Drozdek 6.9<!--[https://docs.google.com/presentation/d/1UmeRYPvg_hUIg8SneK9lrYRK-c2QWFcPH9yBaiwIEx8/edit?usp=sharing Midterm review slides]<br>
 
|Drozdek 6.9<!--[https://docs.google.com/presentation/d/1UmeRYPvg_hUIg8SneK9lrYRK-c2QWFcPH9yBaiwIEx8/edit?usp=sharing Midterm review slides]<br>
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|Oct. 24<br>
 
|Oct. 24<br>
 
|Disjoint sets
 
|Disjoint sets
|Union-find algorithm
+
|Equivalence relations, classes; union-find algorithm
|Drozdek 8.4.1<br>
+
|
 
[http://en.wikipedia.org/wiki/Disjoint-set_data_structure Wikipedia entry], [http://courses.cs.washington.edu/courses/cse332/12su/slides/lecture15-mst-dsuf-handout.pdf UW slides] (first 5 pages of PDF)<br>
 
[http://en.wikipedia.org/wiki/Disjoint-set_data_structure Wikipedia entry], [http://courses.cs.washington.edu/courses/cse332/12su/slides/lecture15-mst-dsuf-handout.pdf UW slides] (first 5 pages of PDF)<br>
Optional: [https://www.cs.princeton.edu/~rs/AlgsDS07/01UnionFind.pdf Princeton slides]
+
<!--Optional: [https://www.cs.princeton.edu/~rs/AlgsDS07/01UnionFind.pdf Princeton slides]-->
 
|<!--[https://drive.google.com/file/d/1xjRvqCxN_CH-xOlaofwY6A4O0D38_es7/view?usp=sharing STL PQ example]-->
 
|<!--[https://drive.google.com/file/d/1xjRvqCxN_CH-xOlaofwY6A4O0D38_es7/view?usp=sharing STL PQ example]-->
 
|-
 
|-
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|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|Oct. 26/Oct. 27
 
|style="background:rgb(245, 222, 179)"|Oct. 26/Oct. 27
|style="background:rgb(245, 222, 179)"|LAB #7 <!--[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab7 LAB #7]-->
+
|style="background:rgb(245, 222, 179)"|[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab7 LAB #7]
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
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|
 
|
 
|Drozdek, 7.1.10
 
|Drozdek, 7.1.10
|<!--[https://drive.google.com/file/d/14kkP7Nz1_dFFHNvMwGixrryrkgbk1AyK/view?usp=sharing STL map example]-->
+
|[https://drive.google.com/file/d/14kkP7Nz1_dFFHNvMwGixrryrkgbk1AyK/view?usp=sharing STL map example]
 
|-
 
|-
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|Nov. 2/Nov. 3
 
|style="background:rgb(245, 222, 179)"|Nov. 2/Nov. 3
|style="background:rgb(245, 222, 179)"|LAB #8 <!--[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab8 LAB #8]-->
+
|style="background:rgb(245, 222, 179)"|[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab8 LAB #8]
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
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|style="background:rgb(102, 204, 255)"|20
 
|style="background:rgb(102, 204, 255)"|20
 
|Nov. 7
 
|Nov. 7
|Hashing
+
|Graphs
|Hash function, probing (linear, quadratic, double hashing), chaining
+
|Terminology, applications, representations: adjacency matrix, adjacency lists/sets
|Drozdek 10-10.2.2
+
|Drozdek 8-8.1
 
|
 
|
 
|-
 
|-
 
|21
 
|21
 
|Nov. 9
 
|Nov. 9
|Hashing
+
|Graphs
|Deletions; applications to file integrity verification, password storage
+
|Traversals: depth-first, breadth-first
|Drozdek 10.3<br>[http://unixwiz.net/techtips/iguide-crypto-hashes.html Illustrated Guide to Cryptographic Hashes]
+
|Drozdek 8.2, 8.3 (stop after Dijkstra's)<br>
|
+
Optional: [http://www.redblobgames.com/pathfinding/a-star/introduction.html Path-finding tutorial] (stop at "Heuristic search")
 +
|[https://docs.google.com/document/d/1J5Qv_r82AkWHVus5b53saw98tQzlVK8c12-F3CxtiGY/edit?usp=sharing BFS pseudocode]
 
|-
 
|-
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|Nov. 9/Nov. 10
 
|style="background:rgb(245, 222, 179)"|Nov. 9/Nov. 10
|style="background:rgb(245, 222, 179)"|LAB #9 <!--[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab9 LAB #9]-->
+
|style="background:rgb(245, 222, 179)"|[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab9 LAB #9]
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
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|Nov. 14<br>''Withdraw deadline Nov. 13''
 
|Nov. 14<br>''Withdraw deadline Nov. 13''
 
|Graphs
 
|Graphs
|Terminology, applications, representations: adjacency matrix, adjacency lists
+
|Dijkstra's shortest path algorithm, Kruskal's minimum spanning tree algorithm
|Drozdek 8-8.1
+
|
|Project assigned
+
|[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Project Project assigned]
 
|-
 
|-
 
|
 
|
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|style="background:rgb(102, 204, 255)"|23
 
|style="background:rgb(102, 204, 255)"|23
 
|Nov. 28
 
|Nov. 28
|Graphs
+
|Hashing
|Traversals: depth-first, breadth-first
+
|Hash function, probing (linear, quadratic, double hashing), chaining
|Drozdek 8.2, 8.3 (stop after Dijkstra's)<br>
+
|Drozdek 10-10.2.2<br>[https://cs.stackexchange.com/questions/11029/why-is-it-best-to-use-a-prime-number-as-a-mod-in-a-hashing-function Why choose a prime for hash table size?]
Optional: [http://www.redblobgames.com/pathfinding/a-star/introduction.html Path-finding tutorial] (stop at "Heuristic search")
 
 
|<!--[https://docs.google.com/presentation/d/1V1_q89gF3kX1lLTVltJl4sH2u87tERpkh6X2C5aXQSs/edit?usp=sharing slides]-->
 
|<!--[https://docs.google.com/presentation/d/1V1_q89gF3kX1lLTVltJl4sH2u87tERpkh6X2C5aXQSs/edit?usp=sharing slides]-->
 
|-
 
|-
 
|24
 
|24
 
|Nov. 30
 
|Nov. 30
|Graphs
+
|Hashing
|Shortest path: Dijkstra's algorithm
+
|Deletions; applications to file integrity verification, password storage
|
+
|Drozdek 10.3<br>[http://unixwiz.net/techtips/iguide-crypto-hashes.html Illustrated Guide to Cryptographic Hashes]
 
|<!--[https://docs.google.com/presentation/d/1Y3demwUDnWeAEpeIU23pdvSrfdo1sAtzRt_zrlVu_PI/edit?usp=sharing slides]-->
 
|<!--[https://docs.google.com/presentation/d/1Y3demwUDnWeAEpeIU23pdvSrfdo1sAtzRt_zrlVu_PI/edit?usp=sharing slides]-->
 
|-
 
|-
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|Nov. 30/Dec. 1
 
|style="background:rgb(245, 222, 179)"|Nov. 30/Dec. 1
|style="background:rgb(245, 222, 179)"|LAB #10
+
|style="background:rgb(245, 222, 179)"|[http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023_Lab10 LAB #10]
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
 
|style="background:rgb(245, 222, 179)"|
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|Dec. 7
 
|Dec. 7
 
|Sorting
 
|Sorting
|More sorting
+
|Actually less sorting
 
|
 
|
 
|
 
|
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|Final review on YouTube
 
|Final review on YouTube
 
|
 
|
|<!--[https://docs.google.com/presentation/d/1eTXi-o6tkSFXhBPzU0S_BFHX3J8b0raZf0iL40SDZaw/edit?usp=sharing Final review slides]<br>[https://drive.google.com/file/d/1visePCtxvwxFJv7Yd3ILeqFxyCEGII4Y/view?usp=sharing Post-midterm lecture notes]-->
+
|<!--<br>[https://drive.google.com/file/d/1visePCtxvwxFJv7Yd3ILeqFxyCEGII4Y/view?usp=sharing Post-midterm lecture notes]-->
|<!--[https://youtu.be/7u_zbb8fT6E recording] (with solutions to 2010 final linked below)<br>[http://nameless.cis.udel.edu/class_data/220_f2014/cisc220_f2010_final.pdf 2010 final] (ignore Q4 and Q5, but see Q2 on [http://nameless.cis.udel.edu/class_data/220_f2014/220_2010_midterm.pdf 2010 midterm])-->
+
|[https://docs.google.com/presentation/d/12Rtz_u6-lzD5NCi3toBN7D0VtZYnttR1WXC4tus14Q8/edit?usp=sharing Final review slides]<br>[https://youtu.be/7u_zbb8fT6E Review recording] -- start at 4:17 (with solutions to 2010 final linked below)<br>[http://nameless.cis.udel.edu/class_data/220_f2014/cisc220_f2010_final.pdf 2010 final] (ignore Q4 and Q5, but see Q2 on [http://nameless.cis.udel.edu/class_data/220_f2014/220_2010_midterm.pdf 2010 midterm])
 
|-
 
|-
 
|
 
|
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|''Project due''
 
|''Project due''
 
|-
 
|-
|style="background:rgb(102, 204, 255)"|
+
|
|Dec. 13-17
+
|Dec. 14<br>11:30 am - 1:30 pm
 
|FINAL EXAM
 
|FINAL EXAM
|Time and location???
+
|Gore 219 (this room!)
 
|
 
|
 
|
 
|
 
|}
 
|}

Latest revision as of 14:40, 8 December 2023

Course information

Description CISC 220 -- Data Structures (Honors)

Comprehensive introduction to data structures and algorithms, including their design, analysis, and implementation. Topics include recursion, stacks, queues, lists, heaps, hash tables, search trees, sorting, and graphs.

Requirements This is a course for undergraduates who have obstained a grade of C- or better in CISC 181, and have taken or are currently taking CISC 210 and MATH 241.
Instructor Christopher Rasmussen
E-mail: cer@cis.udel.edu
Office: Smith 446
Office hours: Wednesdays, 2-4 pm in Smith 211
URL

http://nameless.cis.udel.edu/class_wiki/index.php/CISC220_F2023

TAs
  • Benita Abraham, E-mail: beniabra@udel.edu, Friday lab, office hours Tuesdays 4-5 pm in Smith 203
  • Connor Nagle, E-mail: cnagle@udel.edu, Thursday lab, office hours Tuesdays 3-4 pm in Smith 203
Schedule
  • Lectures: Tuesdays and Thursdays 11:10 am to 12:30 pm in GORE 219
  • Labs: Thursdays 2:20 to 3:15 pm in CLB 046 and Fridays 3:00 to 3:55 pm in ISE 202. In the schedule below note that there is NOT a lab every week
Grading
  • 50% Labs (5% each). These are problem sets/smaller programming exercises which are assigned in lab most weeks and due by the beginning of class each Thursday before the next lab. All written answers must be in PDF form. Attendance at labs is expected if you have not yet submitted--this is your chance to ask questions face to face and get started early on the assignment
  • 10% Open-ended programming project. Subject to a few constraints, you will be free to implement and apply a data structure and/or algorithm of your choosing.
  • 20% Midterm (Oct. 19)
  • 20% Final (essentially a midterm for the second half of the course)

Your labs and programming projects are due by midnight of the deadline day (with a small grace period afterward). All should be submitted directly to Canvas--e-mail submissions will not be accepted. A late homework is a 0 without a valid prior excuse. To give you a little flexibility, you have 6 "late days" to use over the semester to extend the deadline by one day each without penalty. No more than two late days may be used per assignment. Late days will automatically be subtracted, but as a courtesy please notify the instructor and TA in an e-mail of your intention to use them before the deadline.

For the overall course grade, a preliminary absolute mark will be assigned to each student based on the percentage of the total possible points they earn according to the standard formula: A = 90-100, B = 80-90, C = 70-80, etc., with +'s and -'s given for the upper and lower third of each range, respectively. Based on the distribution of preliminary grades for all students (i.e., "the curve"), the instructor may increase these grades monotonically to calculate final grades. This means that your final grade can't be lower than your preliminary grade, and your final grade won't be higher than that of anyone who had a higher preliminary grade.

I will try to keep you informed about your standing throughout the semester. If you have any questions about grading or expectations at any time, please feel free to ask me.

Textbook

Data Structures and Algorithms in C++ (4th ed.), Adam Drozdek. It is NOT at the textbook store (at least not new). Suggested sources:

Code examples from the book can be downloaded here

Collaboration and AI policy Students can discuss problems with one another in general terms, but must work independently on all assignments except when pairs or teams are permitted. This also applies to online and printed resources, including search engine results and discussion forums: you may consult them as references (as long as you cite them), but the words (i.e., code) you turn in must be yours alone. Any quoting must be clear and appropriately cited. The University's policies on academic dishonesty are set forth in the student code of conduct here.

On certain assignments where the instructions explicitly grant permission, students may use generative AI tools such as OpenAI's ChatGPT, GitHub's Copilot, Meta's Code Llama, etc. for code creation, modification, and/or bug-finding. Where no such permission is granted or nothing is said, the default assumption is that all code written originally came from and was fixed by your own human brain. Furthermore, if and when you use an AI tool for any permitted purpose, it MUST be acknowledged with a citation along the lines of these guidelines (i.e., specific tool, date, prompt or prompts used, as well as any other useful context). Such citations should be added as comments to any code files which contain AI-generated code, and a README file with all such citations should be included with any homework submission.

AI tools are generally acceptable for tutorial or explanatory purposes while working on programming assignments or labs, or when studying for quizzes/exams. However, AI or search tool usage during any in-class quiz or exam is prohibited.

Schedule

Note: The blue squares in the "#" column below indicate Tuesdays. Tan rows are lab days (Thursdays/Fridays). All lectures (except YouTube posts) should be available on UDCapture
2023-2024 UD academic calendar

# Date Topic Notes Readings Links
1 Aug. 29 Introduction Big four topics in data structures and algorithms: abstraction, implementation, analysis, and applications Drozdek 1.1-1.3
2 Aug. 31 C++ review C++ basics: differences with C, arrays, I/O, random numbers, new/delete, static vs. dynamic memory allocation C vs. C++
C++ for Java programmers cheat sheets: [1], [2]

cplusplus.com tutorial: Basics, Program Structure, Compound Data Types

Basic C++ exercises with tutorial
Aug. 31/Sep. 1 LAB #1
3 Sep. 5 C++ review ADTs, classes, destructors, constructors, assignments Drozdek 1.4 (skip 1.4.5)

cplusplus.com tutorial: Classes I & II, Special Members

cplusplus_2a.tar
Simple C++ class creation exercises with solutions
4 Sep. 7 C++ review Function & class templates, STL Drozdek 1.7-1.8

cplusplus.com tutorial: Classes II (class templates section in particular), STL reference

template_test, anythingcell
Sep. 7/Sep. 8 LAB #2
5 Sep. 12

Register/add deadline

Stacks ADT (including STL) and applications, including stacks for postfix expression evaluation Drozdek 4-4.1
codestepbystep practice site (registration required)
stl_test
6 Sep. 14 Stacks and queues Implementing stacks with linear arrays; queue ADT, applications, and linear array implementation Drozdek 4.1, 4.2 array_stack, array_queue
Sep.14/Sep. 15 LAB #3
7 Sep. 19 Queues, deques, and lists Circular arrays for queues, singly- and doubly-linked lists for stacks and queues Drozdek 3-3.2, 3.7, 3.8, 4.2, 4.4, 4.5
8 Sep. 21 Trees Terminology; representation in general case; pre- and post-order traversals; binary trees; recursion Drozdek 6-6.2, 6.4-6.4.2 More than you ever wanted to know about computing factorials
Sep.21/Sep. 22 LAB #4
9 Sep. 26 Trees Binary trees for arithmetic expressions; in-order traversals; binary search trees Drozdek 6.3, 6.5-6.6 (skip 6.6.1), 6.12 (expression trees)
10 Sep. 28 Trees Deletions, findMin(), findMax() in binary search trees; lab #5
Sep.28/Sep. 29 LAB #5
11 Oct. 3 Algorithm analysis Big-O notation and common complexity classes; analyzing code to obtain big-O estimates Drozdek 2-2.3, 2.5-2.6, 2.7
Oct. 5 NO LECTURE TODAY
Instructor at meeting
Oct. 5/Oct. 6 LAB #6
12 Oct. 10 Balanced binary trees AVL trees: definition, balance notation, rotations Drozdek 6.7-6.7.2 (skip 6.7.1) Rotation applet
13 Oct. 12 Balanced binary trees, priority queues (PQ) AVL trees: applying rotations to restore balance property; PQ ADT, comparison of implementation efficiencies Drozdek 6.7-6.7.2 (skip 6.7.1); 4.3, 4.6 (PQs) STL PQ example
Oct. 12/Oct. 13 NO LAB THIS WEEK
14 Oct. 17 Heap implementation of priority queues
(NOT on midterm -- see midterm review material in Links column)
Heap implementation details, complexity analysis Drozdek 6.9 Midterm review slides
2010 midterm (ignore questions 2 and 6), UDCapture going over 2010 exam

2021 midterm

15 Oct. 19 MIDTERM
Oct. 19/Oct. 20 NO LAB THIS WEEK
16 Oct. 24
Disjoint sets Equivalence relations, classes; union-find algorithm

Wikipedia entry, UW slides (first 5 pages of PDF)

17 Oct. 26 Disjoint sets Smart union, path compression, maze generation application
Oct. 26/Oct. 27 LAB #7
18 Oct. 31 Compression Huffman coding, tries Drozdek 11-11.2 (skip 11.2.1)
19 Nov. 2 Finish compression; maps Drozdek, 7.1.10 STL map example
Nov. 2/Nov. 3 LAB #8
20 Nov. 7 Graphs Terminology, applications, representations: adjacency matrix, adjacency lists/sets Drozdek 8-8.1
21 Nov. 9 Graphs Traversals: depth-first, breadth-first Drozdek 8.2, 8.3 (stop after Dijkstra's)

Optional: Path-finding tutorial (stop at "Heuristic search")

BFS pseudocode
Nov. 9/Nov. 10 LAB #9
22 Nov. 14
Withdraw deadline Nov. 13
Graphs Dijkstra's shortest path algorithm, Kruskal's minimum spanning tree algorithm Project assigned
Nov. 16 NO LECTURE TODAY
Instructor away
Nov. 16/Nov. 17 NO LAB THIS WEEK
Nov. 21 NO LECTURE TODAY
Thanksgiving break
Nov. 23 NO LECTURE TODAY
Thanksgiving break
Nov. 23/Nov. 24 NO LAB THIS WEEK
Thanksgiving break
23 Nov. 28 Hashing Hash function, probing (linear, quadratic, double hashing), chaining Drozdek 10-10.2.2
Why choose a prime for hash table size?
24 Nov. 30 Hashing Deletions; applications to file integrity verification, password storage Drozdek 10.3
Illustrated Guide to Cryptographic Hashes
Nov. 30/Dec. 1 LAB #10
25 Dec. 5 Sorting Insertion sort, mergesort Drozdek 9.1.1, 9.3.4

Optional: Sorting algorithms animated

26 Dec. 7 Sorting Actually less sorting
Dec. 7/Dec. 8 NO LAB THIS WEEK
Final review on YouTube Final review slides
Review recording -- start at 4:17 (with solutions to 2010 final linked below)
2010 final (ignore Q4 and Q5, but see Q2 on 2010 midterm)
Dec. 11-12 Final project demos Project due
Dec. 14
11:30 am - 1:30 pm
FINAL EXAM Gore 219 (this room!)