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Headers/Problem19.hpp

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+//ProjectEuler/C++/Headers/Problem19.hpp
+//Matthew Ellison
+// Created: 09-28-18
+//Modified: 07-14-19
+//How many Sundays fell on the first of the month during the twentieth century (1 Jan 1901 to 31 Dec 2000)?
+/*
+You are given the following information, but you may prefer to do some research for yourself.
+1 Jan 1900 was a Monday.
+Thirty days has September,
+April, June and November.
+All the rest have thirty-one,
+Saving February alone,
+Which has twenty-eight, rain or shine.
+And on leap years, twenty-nine.
+A leap year occurs on any year evenly divisible by 4, but not on a century unless it is divisible by 400.
+*/
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/myClasses
+/*
+	Copyright (C) 2019  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 PROBLEM19_HPP
+#define PROBLEM19_HPP
+
+
+#include <cinttypes>
+#include <string>
+#include "Problem.hpp"
+
+
+class Problem19 : public Problem{
+private:
+//Variables
+	//An easier way to return the days
+	enum DAYS {SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, NUMBER_OF_DAYS, ERROR};
+	static unsigned int START_YEAR;	//The start year
+	static unsigned int END_YEAR;	//The stop year
+	uint64_t totalSundays;	//Keep track of the number of sundays
+//Functions
+	//Return the day of the week that the date you pass into it is on
+	DAYS getDay(unsigned int month, unsigned int day, unsigned int year);
+	//Returns true if the year passed to it is a leap year
+	bool isLeapYear(unsigned int year);
+public:
+	Problem19();
+	virtual void solve();
+	virtual std::string getString() const;
+	//Returns the total sundays that were asked for
+	uint64_t getTotalSundays() const;
+};
+/* Results
+There are 171 Sundays that landed on the first of the months from 1901 to 2000
+It took 4.579 milliseconds to solve this problem.
+*/
+
+#endif //PROBLEM19_HPP