https://slow-is-smooth.io/tags/c%23/Recent content in C# on Shai AsherHugoen-gbSun, 20 Jul 2025 18:54:33 +0000https://slow-is-smooth.io/blog/solving-pandigital-multiples-with-c-and-length-based-pruning/Sun, 20 Jul 2025 18:54:33 +0000https://slow-is-smooth.io/blog/solving-pandigital-multiples-with-c-and-length-based-pruning/<p><em>In this post, we’ll explore a C# implementation that finds the largest 1–9 pandigital concatenated product by mathematically pruning the search space based on digit lengths, rather than brute-forcing all possibilities.</em></p> <hr> <h2 id="1-the-pandigital-multiples-problem-recap">1. The Pandigital Multiples Problem Recap</h2> <p>We seek the maximum 9‑digit number formed by concatenating the products:</p>