Problems

Here are some of my favourite problems and some that I have set for BIMO:

Self-Made Olympiad-Style Problems

Favourite Problems in General

20 July 2024 Graph Theory Talk at Kuen Cheng

Slides

6 June 2023 Probability Talk at Kuen Cheng

Slides

27 & 28 April 2023 OMK Talk at Sunway

Slides

BIMO 2023 Handouts

Number Theory IV (J) - 12 Feb 2023

Number Theory III (J) - 12 Feb 2023

Geometry Problem-Solving Session (B) - 11 Feb 2023

Algebra II (B) - 14 Jan 2023

Algebra I (B) - 14 Jan 2023

Number Theory II (J) - 18 Dec 2022

Number Theory I (J) - 18 Dec 2022

Combinatorics (B) - 13 Nov 2022

Algebra (J) - 12 Nov 2022

Olympiad

Projective Geometry

Finite Differences

General Combinatorial Problems

Elementary Inequalities

Complex Numbers

Modular Arithmetic

Functional Equations

Graph Theory

Non-Olympiad

Continuous Distributions

Discrete Distributions

Linear Algebra

SPM Chemistry

SPM Chemicals

SPM Chemicals for Consumers (Form 5)

SPM Manufactured Substances in Industry (Form 4)

SPM All Chemical Equations