CMPT 225 - Introduction

CMPT: 225, D100 — Data Structures & Programming

Graded Work

• 4 Assignments, 32%
  • Programming & Written Components
  • Programs:
    • In C++
    • running on ESIL Linux machines
    • using command line tools
• 3 Tests, 33%
  • In class
• 1 Final Exam, 35%

Lectures

• Slides + audio recording will be posted after lectures.

Labs

• There are help times (first labs are next week)

Instructor Office Hours

• Will be primarily online — times TBA.

Instructor Contact

• Via Canvas or email (for email: write from your SFU account, use subject “225: …”)

Some Basic Rules

• In class, do not distract others.
• In class, no taking photos/videos/recording
• Help each other, but submit your own work.
• Masks are mandatory in class:
  • may be removed while asking a question
  • if you cannot wear a mask, please email me
• Please stay on “your” side of the table
  • and stay 6’ away if you don’t have a mask on

Course Content

• Algorithms: processes that operate on data
• Programs: implementations of algorithms
• Data in programs: stored in data structures
  • simple D.S.: variables
  • most algorithms required compound D.S.s: e.g. arrays, lists, …
  • most non-trivial applications require non-trivial D.S.s
• Data Type: collection of values + operations on these values
• Multiple data types:
  • Cleaner/simpler slg. design
  • better code
• Abstract Data Type: defined by values + operations without reference to how things are implemented
• ADTs provide an abstract view of data:
  • let us reason about algorithms at a high level, ignoring implementation details
• Good ADT choices reduce program complexity & increase likelihood of success ( which is good).
• a[i] vs. a(i)

We will look at:

• fundamental ADTs
• fundamental data structures (to implement them)
• sorting algorithms
• with attention to:
  • correctness
  • efficiency/speed
  • how to implement
  • how to choose (for an application)

Pre-regs:

• Basic Programming (e.g. CMPT 125)
• Discrete Math (e.g. MACM 101)

(students get these in many different ways)

To Do

• Read chapters 1 + 3 of text
• Lear about CSIL

End