/* * Interface for Project Euler Java solutions * Copyright (c) Project Nayuki. All rights reserved. * * https://www.nayuki.io/page/project-euler-solutions * https://github.com/nayuki/Project-Euler-solutions */ // This forces every solution class to implement a common interface, // which is helpful for unit testing like in the EulerTest implementation. public interface EulerSolution { public String run(); }