CS 61B Data Structures, Fall 2021
Instructor: Paul Hilfinger. Office hours Tu 1-2, Th 4-5, 787 Soda and Zoom link
Lecture: MWF 1-2PM, Stanley 105 as capacity allows.
Zoom Webinar Link: in @9 on Piazza
Announcements

Please also check our course Piazza for more announcements.

Date Category Announcement
8/23 Lectures Because the class is bigger than Stanley will hold, and because of considerations imposed by the current pandemic, we do not require lecture attendance in person. Feel free to use the Zoom webinars, screencasts, and posted slides (linked to from the website) instead.
8/23 Admin Announcements from outside groups will be kept on Piazza in the outside_postings folder. You can narrow your view to this category using the tab on the folder bar at the top of the Piazza page.
8/23 Admin Tests will be as follows:
  • Test #1: Thursday, 30 September 2021.
  • Test #2: Wednesday, 3 November 2021
  • Final: Wednesday, Dec 15 2021, 7:00P - 10:00P
8/23 Admin To join the Piazza page for CS 61B, head over to this this link.
8/23 Admin The Scores tab above will show you what you have submitted and any logs produced by the autograder.
8/23 Admin You will need a CS61B Unix account to hand in your work, among other things. You can get one by clicking here.
Calendar
Zoom Lectures: please use this link to join our lecture webinar

Legend:

Week Date Reading Lecture Discussion Lab Assignments/Exams
1 Mon 8/23 No classes No discussion section javac, java, git HW0: Being a Good Classmate and A Few Java Exercises
(due 9/3)
Wed 8/25 HFJ 1-26 Intro, Hello World Java
[slides]
Fri 8/27 AJR 1.1-1.9 A Little Programming
[slides][code]
2
[Survey]
Mon 8/30 HFJ 27-36. AJR Chapter 4 Values and Containers
[slides][code]
Intro to Java
[Solution]
[Video] [Slides]
IntelliJ and IntLists [HW0 due 9/3]
HW1: JUnit testing, basic syntax, and linked lists
(due 9/7)
Project 0: Flood
(due 9/17)
Wed 9/1 Simple Pointer Manipulation
[slides][code]
Fri 9/3 HFJ 670 Arrays
[slides][code]
3
[Survey]
Monday, 9/6 No classes Pointers
[Solution]
[Video] [Slides]
IntDLists and Debugging
[HW1 due 9/7]
HW2: Arrays and Lists of Lists
(due 9/14)
Wed 9/8 HFJ 50-62 Developing a Sort, Unit Testing
[slides][code]
Fri 9/10 HFJ 73-87 Object-Based Programming
[slides][code]
4
[Survey]
Mon 9/13 HFJ 168-191, 236-265, 287-293 Object-oriented Mechanisms
[slides]
Objects
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video] [Slides]
Project 0 Office Hours
(No lab assignment)
[Project 0 due 9/17]
[HW2 due 9/14]
HW3: OOP, Interfaces, and Inheritance
(due 9/21)
Wed 9/15 HFJ 200-229 Interfaces and Abstract Classes
[slides]
Fri 9/17 HFJ 73-87 Interfaces and Abstract Classes
[slides][code]
5
[Survey]
Mon 9/20 HFJ 228-229. 250-256 Examples: Comparable and Reader, OOP Details
[slides][code]
Inheritance
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video] [Slides]
OOP with Collections, Iterators, and Iterables [HW3 due 9/21]
Project 1
(due 10/7)
Wed 9/22 HFJ 316-348, 587-593, 665-668 Delegation, Exceptions, Assorted Features
[slides]
Fri 9/24 HFJ 154-160, 667-668 Packages, Access Control
[slides]
6
[Survey]
Mon 9/27 AJR 6.3, 6.4, HFJ 274-310 Integers
[slides]
Test Review
[Solution]

Exam Prep

[Solution]
Unit Testing and Integration Testing for Enigma [Project 1: Checkpoint due 9/27]
HW4: Scanners and Patterns
(due 10/5)
Wed 9/29 DSIJ Chapter 1 Integers. Exam review.
Thur 9/30 Test #1, 7-9PM
Fri 10/1 Complexity
[slides]
7
[Survey]
Mon 10/4 DSIJ Chapters 2 and 3 Collections, Amortization
[slides]
Bits and Algorithmic Analysis
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video] [Slides]
Project 1 Office Hours
(No lab assignment)
[Project 1 due 10/7]
[HW4 due 10/5]
HW5: Bit Operations, Asymptotic Analysis
(due 10/12)
Wed 10/6 DSIJ Chapter 4 Sequences, Some Design Patterns
[slides][code]
Fri 10/8 Sequences (II)
8
[Survey]
Mon 10/11 DSIJ Chapter 5 Trees
[slides]
More Algorithmic Analysis
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video]
Practical Asymptotic Analysis and TreeMaps [HW5 due 10/12]
HW6: BSTs, Ranges, and Hashing
(due 10/19)
Project 2
(due 10/28)
Wed 10/13 DSIJ Chapter 6 Tree searching
[slides][code]
Fri 10/15 DSIJ Chapter 7 Hashing
[slides]
9
[Survey]
Mon 10/18 DSIJ 6.5 Game Trees
[slides]
Binary Trees
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video]
Heaps and Priority Queues [HW6 due 10/19]
Wed 10/20 DSIJ 6.4 Priority Queues, Range Queries
[slides]
Fri 10/22 AJR Chapter 10 Generics
[slides]
10
[Survey]
Mon 10/25 DSIJ 8 Sorting
[slides]
Heaps and Hashing
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video]
Project 2 Office Hours
(No lab assignment)
[Project 2: Checkpoint due 10/25]
[Project 2 due 10/28]
Wed 10/27 Sorting (II)
[slides]
Fri 10/29 Sorting (III)
[slides][code]
11
[Survey]
Mon 11/1 DSIJ 9
balanced-search demos
Balanced Search Structures
[slides]
Sorting
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video]
Files and Persistence Project 3
(due 12/3)
HW 7: Sorting
(due 11/9)
Wed 11/3 Review
Wed 11/3 Test #2, 7-9PM
Fri 11/5 Balanced Search Structures (II)
[slides]
12
[Survey]
Mon 11/8 DSIJ 11 Git Internals
[slides]
Balanced Search
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video]
Software Engineering and Design [HW7 due 11/9]
HW8: Red Black Trees
(due 11/16)
Wed 11/10 DSIJ 12 Graphs, Introduction, Traversals
[slides]
Fri 11/12 A* Search, Minimal spanning trees, Union-find
[slides]
13
[Survey]
Mon 11/15 Pseudo-Random Sequences
[slides][code]
Graphs & MSTs
[Solution]
[Video] [Slides]
Exam Prep

[Solution]
[Video]
Union Find and MSTs [HW8 due 11/16]
HW 9: Graphs
(due 11/30)
Wed 11/17 DSIJ 10, HFJ pp. 489-516 Dynamic Programming, Enumeration Types
[slides]
Fri 11/19 Threads, Garbage Collection
[slides]
14 Mon 11/22 Continued from Friday No discussion section No lab assignment [HW9 due 11/30]
[Project 3: Checkpoint due 11/22]
Wed 11/24 No lecture
Fri 11/26 Thanksgiving
15 Mon 11/29 Compression
Shortest Paths No lab assignment [HW9 due 11/30]
[Project 3 due 12/3]
Wed 12/1 TBD
Fri 12/3 Summary, Survey
16 Mon 12/6 RRR week No discussion section No labs
Wed 12/8 RRR week
Fri 12/10 RRR week

Discussion and Lab Schedule

Section attendance is optional but highly encouraged in CS61B.

Lab and discussion will be offered both online and in-person. There will be no restrictions on the number of students permitted to attend online sections. We will release in person section signups at 5PM PT on 8/24. Until Week 4, you may only attend an in person section if you are signed up for it. Afterwards, you may attend any section.

Discussions

Labs

Office Hours & Misc. Events Schedule

OH will be held online until (at least) Week 4. Office Hours begins on 8/30.

Online OH (yellow) can be accessed at oh.datastructur.es at the times listed below on the OH Discord Server.

Prof. Hilfinger's office hours: Tu 1-2, Th 4-5, 787 Soda and on Zoom.