Project EulerSolving the Pandigital Puzzle with AVX2 SIMD Acceleration.
Bringing AVX2 to Project Euler 38 — what 256-bit registers buy when the same pandigital check runs over thousands of candidates, and how the C++ compares to scalar code.
Project Euler
Solving Project Euler 38 with MATLAB: The Vectorized Pandigital Blitz
Vectorising Project Euler 38 in MATLAB: build the concatenated products as a matrix, test every candidate in one pass, and let the language do what it is actually good at.
Solving Pandigital Multiples with C# and Length‑Based Pruning
A C# solution that prunes by digit length instead of brute-forcing: the constraint that the products must total nine digits bounds k to a handful of ranges.
Optimizing Pandigital Multiples in Python
Turning the brute-force Python solution lean: integer concatenation instead of strings, a 10-bit mask for the pandigital test, and early exits that prune the search.
Programmatically Finding Pandigital Multiples
A step-by-step Python solution to Project Euler 38: why the search stops at 9999, how to build each concatenated product, and a straightforward pandigital check.
Project Euler 38: Solving with Pen and Paper Like It’s 1899 🖊️
Project Euler 38 without a computer: digit-count arithmetic narrows the search to four-digit numbers starting with 9, and the rest is pen, paper and a little logic.