I’m Grant Mullins, a computer science and math student at Virginia Tech. My areas of focus are cybersecurity and applied discrete math. I enjoy building small tools, solving CTF challenges, and competing in math competitions. I also like drumming, mountain biking, and playing Rocket League.
A random assortment of writeups, resources, videos, and more.
Some math documents I've written, focused on competitive math and problem-solving.
An intro to foundational competitive math topics, with problems and solutions. I made these problem sets when I hosted Beginner Problem-Solving meetings for the Virginia Tech Math Club during the Fall 2025 semester.
A collection of Putnam problems (and pre-Putnam problems) grouped by topic, along with a hint for each problem. I made these problem sets when I hosted Putnam Prep meetings for the Virginia Tech Math Club during the Fall 2024 semester.