Sami Rollins srollins@mtholyoke.edu Spring 2006 CS312 Algorithms Sami Rollins srollins@mtholyoke.edu Spring 2006.

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Presentation transcript:

Sami Rollins srollins@mtholyoke.edu Spring 2006 CS312 Algorithms Sami Rollins srollins@mtholyoke.edu Spring 2006

Introduction What is an algorithm? Why study algorithms? How do you evaluate an algorithm?

Administrative Information Course Website Syllabus Academic Dishonesty Calendar http://www.mtholyoke.edu/courses/srollins/cs312/

Data Structures What is a data structure? “a scheme for organizing related pieces of information.“ -http://www.webopedia.com/TERM/D/data_structure.html Typically describes the operations which can be performed on the data and/or how data are organized to support those operations Example data structures? Array? Linked list?

Common Data Structures Stacks – Last In First Out (LIFO) Insert on top Remove top element Queues – First In First Out (FIFO) Insert at end Remove from beginning Trees - Hierarchy Root Parent Children

Choosing a Data Structure When would you use a… Stack? Queue? Tree?

Implementing Data Structures How would you implement a… Stack? Queue? Tree?