COMP9123 Data Structures and Algorithms (University of Sydney): rated 2.9/5 overall across 5 reviews collected on USYD Wall.
COMP9123 is a University of Sydney course taught by the Faculty of Engineering in Computer Science. This page brings together its handbook details and what USYD students say about it.
Review data updated 2026-10-24.
Chinese title: 数据结构与算法
Type: Postgraduate
Credit points: 6
Subject area: Computer Science
Faculty: Faculty of Engineering
Level: Postgraduate Level 9
Handbook year: 2026
This unit will teach some powerful ideas that are central to solving algorithmic problems in ways that are more efficient than naive approaches. In particular, students will learn how data collections can support efficient access, for example, how a dictionary or map can allow key-based lookup that does not slow down linearly as the collection grows in size.
COMP9123 has 5 scored reviews: overall 2.9/5 (all out of 5; higher difficulty means harder).
Sources: 5 Reddit comments that an AI model judged to be reviewing this course (average would-recommend 2.9/5).
On Reddit: "recommending in taking the foundation core first to give you the foundation you need for the rest of the degree. suggesting combinations would be COMP9001 / 9003, COMP9120, COMP9601 and COMP9123 / INFO6007 if you are new to programming, I am not recommending COMP9123 in your 1st…"
On Reddit: "DSA: 1. Uses Python. 2. I think the content here is pretty useful, since it covers basic algorithms and data structures i would say is quite important for anyone doing CS related stuff to know. I also found the course entertaining as it felt like puzzle solving (which I personal…"
The course panel on USYD Wall shows every review and discussion in full.
Q: Is COMP9123 worth taking?
A: Averaged over 5 reviews: overall 2.9/5.
Q: Which faculty teaches COMP9123, and when is it offered?
A: COMP9123 is taught by the Faculty of Engineering. Check the official handbook for the current year.
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