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© 2004 Goodrich, Tamassia CS2210 Data Structures and Algorithms Lecture 1: Course Overview Instructor: Olga Veksler

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Analysis of Algorithms2 What is this course about? We will study moderately complex data structures and algorithms that are essential in core areas of computer science Compilers Operating Systems Database Systems Search Engines etc. This is one of the most important (and fun) courses you will take Prerequisite for almost all other upper year courses

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Analysis of Algorithms3 Simple data structures you have seen Data structure = representation and operations associated with a data type Set/bag Array Tree

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Analysis of Algorithms4 Simple algorithms you have seen Binary search Bubble sort Quick sort

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Analysis of Algorithms5 Knowledge Assumed We assume you know basic data structures Arrays, bags, lists, stacks, queues, linked lists Functions, logarithms, exponents, sets, series, derivatives, limits Abstract Data types Basic object oriented design concepts abstraction, encapsulation, modularity

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Analysis of Algorithms6 Skills Assumed We assume you know how to program in Java can design, implement, test, debug, read, understand and document relatively simple Java programs including simple recursive code This is not a course on Java. If you don’t know Java, start learning it now, before the programming assignments are due! Books, tutorials on the web, etc. Chapter 1 of our text book (Goodrich&Tamassia) gives a good introduction to Java

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Analysis of Algorithms7 What will you learn? Analysis of moderately complex algorithms How to predict algorithm’s performance time and space complexity Algorithm correctness Moderately complex data structures that let us efficiently store, access, manage data How to solve practical problems efficiently by choosing the appropriate data structures and algorithms

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Analysis of Algorithms8 Topics Covered Analysis of algorithms Time and space complexity Correctness Data Structures Dictionaries, hash tables Priority queues and heaps Trees, binary search trees, multi-way search trees Graphs Algorithms Binary Search, sorting, algorithms on trees and graphs Java Interfaces; Java exceptions

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Analysis of Algorithms9 Contact Info Instructor Information Olga Veksler Lectures: Tu 1:30-3:30, Th 2:30-3:30 Office hours: Wed 10-12 Lecture Notes Available on the course web page

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Analysis of Algorithms10 Contact Info Course Web Page http://www.csd.uwo.ca/courses/CS2210b You are responsible for checking the course web page frequently I will post any important announcements on the web page (about homework, exams, etc.)

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Analysis of Algorithms11 Discussion board I have set up a discussion board for the course (link from the course web page) Use it to ask any questions about the course You can post anonymously You should also feel free to reply to other student’s questions If you have a question about homework Post it on the discussion board Come talk to me or the TA Please do not email me about homework, unless it is to set up a meeting outside the office hours

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Analysis of Algorithms12 Course Prerequisites Computer Science 1027a/b or 1037a/b with grade of at least 60% One full-course equivalent from Calculus 1050a/b, 1051a/b, 1081a/b, Linear Algebra 1040a/b, Applied Mathematics 1026, Mathematics 030, the former Mathematics 1027, 1023a/b,1024a/b, the former Mathematics 1027 Knowledge of Java

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Analysis of Algorithms13 Textbook Required: Data Structures and Algorithms in Java, fifth edition, Goodrich and Tamassia, John Wiley & Sons, 2010 Supplementary: Data Structures and Algorithms with Object Oriented Design Patterns in Java, Bruno R. Preiss, Wiley, 2000 The Java Programming Language, Arnold and Gosling, Addison-Wesley, 1996. Java, an Object Oriented Approach, Arnow and Weiss, Addison-Wesley, 1999. Other books listed on the course web site

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Analysis of Algorithms14 Student Evaluation Assignments 36% 2 concept assignments, each worth 3% 3 programming assignments, each worth 10% Tentative Midterm Date 29%, 2 hours Tuesday, February 28, in class Final Exam 35%, 3 hours If an assignment has to be cancelled, the remaining assignment weights will be readjusted, if the midterm has to be cancelled, final exam will be worth 64%

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Analysis of Algorithms15 Student Evaluation To be eligible to pass this course need 45% weighted average on the midterm and final exams and 45% weighted average on assignments To be eligible for an overall grade of 60% or higher, need 55% weighted average on the midterm and final exams and 55% weighted average on assignments

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Analysis of Algorithms16 Tentative Assignments Schedule Assignment 1 (concept) due January 24 Assignment 2 (programming) due February 9 Assignment 3 (concept) due February 14 Assignment 4 (programming) due March 15 Assignment 5 (programming) due April 5

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Analysis of Algorithms17 Tentative Assignments Schedule Paper copy of assignments are due in class on the due date or electronically on webct Programming assignments are to be submitted electronically on webct

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Analysis of Algorithms18 Exam Policies There is no makeup for the Midterm, except for students requesting a special midterm exam for religious reasons. These students must have notified the course instructor and filed documentation with their Dean’s office at least 2 weeks prior to the Midterm Exam If you miss Midterm for any other valid reason, present documentation to the Dean’s office; your Final exam score will be re-weighted to include the weight of the Midterm

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Analysis of Algorithms19 Class Attendance Not required, but strongly encouraged Lecture notes is only a summary of things happening in class, will not contain many examples Students who attend lectures tend to do better Attending lecture is most efficient way to learn the required material

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Analysis of Algorithms20 Assignments Will be posted on the web site Concept Assignments Each concept assignment consists of a set of exercises. It must be typed or neatly written Programming assignments Due by 11:59 pm on the due date Java programs Must run on the departmental computing equipment Hand in using electronic submission procedures, to be described later

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Analysis of Algorithms21 Late Policy Concept Assignments No late concept assignments accepted Programming assignments 1 day late: 5% 2 days late: 10% 3 days late: 15% 4 days late: 20% 5 days late: not accepted Saturday and Sunday count as one day

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Analysis of Algorithms22 Late Policy Assignment extensions may be granted only by the course instructor If you have serious medical or compassionate grounds for an extension, take the supporting documentation to the Dean of your faculty

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Analysis of Algorithms23 Assignment Marks Appeals Address appeals to the TA first. If you and the TA cannot agree, then TA will discuss the situation with the instructor Appeals must occur within 1 week from the first day that the marked assignments were made available to students. After 1 week, no appeals will be considered

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Analysis of Algorithms24 Ethical Conduct All assignments are to be done individually Assignments judged to be the result of academic dishonesty will, First offence = -assignment weight Second offence = failing mark You are responsible for reading and respecting the Computer science Department’s policy on Scholastic Offences http://www.csd.uwo.ca/UnderGrad/scholastic_offences.shtml We have sophisticated software which will examine your code against everyone else in class

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