Project Euler Notes

My PE badge

Here I share written solutions to a selection of Project Euler problems I’ve worked through, highlighting the methods and reasoning behind each one. I do not share full solutions directly, and I withhold any detailed insights until the leaderboard (the first 100 fastest solvers) has been filled.

I use C++17, Rust (1.89.0), or Python3 to produce the solutions, without parallel programming unless stated otherwise.

Problems with a difficulty rating of “N/A” are recent problems, meaning their difficulty has not yet been determined.

Notes

972. Hyperbolic Plane (PENDING)

Difficulty rating: N/A | Last edited: Nov 30, 2025 | Rank: 52nd

971. Modular Polynomial Composition

Difficulty rating: N/A | Last edited: Nov 24, 2025

681. Maximal Area

Difficulty rating: 50% | Last edited: Oct 15, 2025