//ProjectEuler/ProjectEulerCPP/headers/Problems/Problem3.hpp //Matthew Ellison // Created: 09-28-18 //Modified: 08-28-20 //The largest prime factor of 600851475143 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/myClasses /* Copyright (C) 2020 Matthew Ellison This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see . */ #ifndef PROBLEM3_HPP #define PROBLEM3_HPP #include #include #include #include "Problem.hpp" class Problem3 : public Problem{ private: //Variables //Static variables static uint64_t GOAL_NUMBER; //The number of which you are trying to find the factors //Instance variables std::vector factors; //Holds the factors of goalNumber public: //Constructor Problem3(); //Operational functions virtual void solve(); //Solve the problem virtual void reset(); //Reset the problem so it can be run again //Gets virtual std::string getResult(); //Return a string with the solution to the problem std::vector getFactors() const; //Returns the list of factors of the number uint64_t getLargestFactor() const; //Returns the largest factor of the number uint64_t getGoalNumber() const; //Returns the number }; /* Results: The largest factor of the number 600851475143 is 6857 It took an average of 50.300 milliseconds to run this problem over 100 iterations */ #endif //PROBLEM3_HPP