# Past Workshops

- Term 1 Week 1 - Acing Technical Interviews - (Slides)
- Term 1 Week 4 - Hashing in the Real World - (Slides)
- Term 1 Week 7 - Introduction to Dynamic Programming - (Slides) - (Questions)
- Term 1 Week 9 - Disjoint Set Unions (with Citadel Securities) - (Slides)

- Term 1 Week 3 - Technical Interview Workshop - (Slides)
- Term 1 Week 5 - Intro to Competitive Programming - (Slides) - (Questions)
- Term 1 Week 7 - When Combinatorics and Flow Networks Intersect - (Slides) - (Recording)
- Term 2 Week 4 - Dynamic Programming - (Slides) - (Questions)
- Term 2 Week 6 - Misc. Problem Solving - (Slides)
- Term 2 Week 8 - Further Dynamic Programming - (Slides) - (Questions)
- Term 2 Week 10 - Graph Theory (2521 Revision) - (Questions)
- Term 3 Week 4 - Stacks and Queues - (Slides) - (Questions) - (Code)
- Term 3 Week 8 - Interactive + Communication problems - (Slides) - (Questions)

- Term 1 Week 2 - Number theory - (Slides) - (Problems) - (Solutions)
- Term 1 Week 4 - Graph theory - (Slides) - (Problems) - (Solutions)
- Term 1 Week 6 - Problem solving - (Slides) - (Problems) - (Solutions)
- Term 1 Week 8 - Proof writing - (Slides) - (Problems) - (Solutions)
- Term 1 Week 10 - Extended number theory - (Slides) - (Problems) - (Solutions)
- Term 2 Week 3 - Combinatorics - (Slides) - (Problems) - (Solutions)
- Term 2 Week 5 - Generating Functions - (Slides) - (Problems) - (Solutions)
- Term 2 Week 7 - Functional Equations - (Slides) - (Problems) - (Solutions)
- Term 2 Week 9 - Inequalities - (Slides) - (Problems) - (Solutions)

- Workshop 0 - Intro to CP - (Slides) - (Honeycomb) - (Studex) - (Trading at IMC 1) - (Trading at IMC 2)
- Workshop 1 - Progressive Problem Solving - (Slides) - (Gameboy) - (Martian DNA)
- Workshop 2 - Lowest Common Ancestor - (Slides) - (LCA implementation)
- Workshop 3 - Floyd Warshall - (Slides)
- Workshop 4 - Disjoint Set Union Find - (Slides)
- Workshop 5 - Topological Sort - (Slides)
- Workshop 6 - Euler Tours - (Slides)
- Workshop 7 - ICPC - Introduction & Dynamic Programming - (Slides)
- Workshop 8 - ICPC - Segment Trees - (Slides)
- Workshop 9 - ICPC - Final Preperation - (Slides) - (Problem Statements) - (Solutions)

- Number Theory - (Notes/Problems) - (Workshop)
- Analytic Number Theory, Series and Generating Functions - (Notes/Problems) - (Workshop)
- Problem Solving Session - (Notes/Problems) - (Workshop)
- Elementary Algebra - (Notes/Problems) - (Workshop)

VJudge group (for problem sets)

- Introduction to Competitive Programming / Prefix Sums - (Slides) - (Code) - (Recording)
*05-03-21: Added annotated code for all problems in the slide, along with writeup for all subtasks of Walkscotch. 04-03-21: Changed extension question on last slide, added link to math workshop Facebook event*- Solving your first problem - (Recording)
- Difference arrays (Extension) - (Recording)
- Walkscotch - (Editorial and solution in (Code)) - (Recording)

Problem Set Editorials - B (see Prefix Sum - Motivation, in (Code)) - C - D - Stacks - (Slides) - (Code) - (Recording)
- Binary Search - (Slides)
- The Problem Solving Process - (Slides) - (Code) - (Recording)
- Graph Theory I - (Slides) - (Code) - (Recording)
- Dynamic Programming I - (Slides) - (Recording)
- Term 3 Week 1 - (Slides) - (Implementation Problem Sheet) - (Discussion Problem Sheet) - (Recording)
- Term 3 Week 2 (Dynamic Programming) - (Slides) - (Code)- (Easy Problem Sheet) - (Hard Problem Sheet) - (Recording)
- Term 3 Week 3 (Data Structures) - (Presented Problems) - (Easy Problem Sheet) - (Hard Problem Sheet) - (Recording)
- Term 3 Week 4 (Graph Theory) - (Presented Problems) - (Easy Problem Sheet) - (Hard Problem Sheet) - (Recording)
- Term 3 Week 5 (Revision) - (Problems - South Pacific Regionals (Division 2) 2020) - (Recording)
- Term 3 Week 6 (Divisionals Debrief) - (Problems - South Pacific Divisionals 2021) - (Recording)

- Introduction to Competitive Mathematics / Proof by Contradiction - (Slides) - (Problem Set) - (Solutions) - (Recording)
- Problem A3 walk-through - (Recording)

- Number Theory - (Slides) - (Problem Set) - (Solutions) - (Recording)
- Invariants - (Slides) - (Problem Set) - (Recording)
- Combinatorial Game Theory - (Slides) - (Problem Set) - (Solutions)
- Combinatorics - (Slides) - (Problem Set) - (Recording)
- Linear Algebra - (Slides) - (Problem Set) - (Recording)
- Functional Equations - (Slides) - (Problem Set) - (Recording)
- Geometry - (Slides) - (Problem Set) - (Solutions) - (Recording)
- Combinatorial Geometry - (Slides) - (Problem Set) - (Recording)