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Updated comments and made sure style was consistent
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@@ -1,11 +1,11 @@
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//ProjectEuler/C++/Headers/Problem23.hpp
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//ProjectEuler/ProjectEulerCPP/Headers/Problem23.hpp
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//Matthew Ellison
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// Created: 11-09-18
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//Modified: 07-14-19
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//Modified: 07-09-20
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//Find the sum of all the positive integers which cannot be written as the sum of two abundant numbers
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//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/myClasses
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/*
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Copyright (C) 2019 Matthew Ellison
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Copyright (C) 2020 Matthew Ellison
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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@@ -33,24 +33,30 @@
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class Problem23 : public Problem{
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private:
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static int MAX_NUM;
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//Variable
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//Static variables
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static int MAX_NUM; //The largest possible number that can not be written as the sum of two abundant numbers
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//Instance variables
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std::vector<uint64_t> divisorSums; //This gives the sum of the divisors at subscripts
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uint64_t sum; //The sum of all the numbers we are looking for
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//A function that returns true if num can be created by adding two elements from abund and false if it cannot
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bool isSum(const std::vector<int>& abund, int num);
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void reserveVectors();
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//Functions
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bool isSum(const std::vector<int>& abund, int num); //A function that returns true if num can be created by adding two elements from abund and false if it cannot
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void reserveVectors(); //Reserve the size of the vector to speed up insertion
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public:
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//Constructor
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Problem23();
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virtual void solve();
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virtual std::string getString() const;
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virtual void reset();
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//Returns the sum of the numbers asked for
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uint64_t getSum() const;
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//Operational functions
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virtual void solve(); //Solve the problem
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virtual void reset(); //Reset the problem so it can be run again
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//Gets
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virtual std::string getString() const; //Return a string with the solution to the problem
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uint64_t getSum() const; //Returns the sum of the numbers asked for
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};
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/* Results:
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The answer is 4179871
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It took 4.888 seconds to solve this problem.
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It took an average of 5.902 seconds to run this problem over 100 iterations
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*/
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#endif //PROBLEM23_HPP
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