mirror of
https://bitbucket.org/Mattrixwv/projecteulercpp.git
synced 2025-12-06 17:13:59 -05:00
Changed directory name
This commit is contained in:
66
headers/Problems/Problem14.hpp
Normal file
66
headers/Problems/Problem14.hpp
Normal file
@@ -0,0 +1,66 @@
|
||||
//ProjectEuler/ProjectEulerCPP/headers/Problems/Problem14.hpp
|
||||
//Matthew Ellison
|
||||
// Created: 09-29-18
|
||||
//Modified: 08-28-20
|
||||
/*
|
||||
The following iterative sequence is defined for the set of positive integers:
|
||||
n → n/2 (n is even)
|
||||
n → 3n + 1 (n is odd)
|
||||
Which starting number, under one million, produces the longest chain?
|
||||
*/
|
||||
//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 <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef PROBLEM14_HPP
|
||||
#define PROBLEM14_HPP
|
||||
|
||||
|
||||
#include <cinttypes>
|
||||
#include <string>
|
||||
#include "Problem.hpp"
|
||||
|
||||
|
||||
class Problem14 : public Problem{
|
||||
private:
|
||||
//Variables
|
||||
//Static variables
|
||||
static uint64_t MAX_NUM; //This is the top number that you will be checking against the series
|
||||
//Instance variables
|
||||
uint64_t maxLength; //This is the length of the longest chain
|
||||
uint64_t maxNum; //This is the starting number of the longest chain
|
||||
|
||||
//Function
|
||||
uint64_t checkSeries(uint64_t num); //This function follows the rules of the sequence and returns its length
|
||||
public:
|
||||
//Constructor
|
||||
Problem14();
|
||||
//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
|
||||
uint64_t getLength() const; //Returns the length of the requested chain
|
||||
uint64_t getStartingNumber() const; //Returns the starting number of the requested chain
|
||||
};
|
||||
|
||||
/* Results:
|
||||
The number 837799 produced a chain of 525 steps
|
||||
It took an average of 197.008 milliseconds to run this problem over 100 iterations
|
||||
*/
|
||||
|
||||
#endif //PROBLEM14_HPP
|
||||
Reference in New Issue
Block a user