//ProjectEuler/C++/Source/Problem7.cpp
//Matthew Ellison
// Created: 09-28-18
//Modified: 07-14-19
//What is the 10001th prime number?
//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/>.
*/


#include <vector>
#include <cinttypes>
#include <string>
#include <sstream>
#include "Stopwatch.hpp"
#include "Algorithms.hpp"
#include "../Headers/Problem.hpp"
#include "../Headers/Problem7.hpp"


uint64_t Problem7::NUMBER_OF_PRIMES = 10001;

Problem7::Problem7() : Problem("What is the 10001th prime number?"){
}

void Problem7::solve(){
	//If the problem has already been solved do nothing and end the function
	if(solved){
		return;
	}
	//Start the timer
	timer.start();

	//Get the correct number of prime numbers
	primes = mee::getNumPrimes(NUMBER_OF_PRIMES);

	//Stop the timer
	timer.stop();

	//Throw a flag to show the problem is solved
	solved = true;
}

std::string Problem7::getString() const{
	//If the problem hasn't been solved throw an exception
	if(!solved){
		throw unsolved();
	}
	std::stringstream results;
	results << "The " << NUMBER_OF_PRIMES << "th prime number is " << primes.at(primes.size() - 1);
	return results.str();
}

uint64_t Problem7::getPrime() const{
	//If the problem hasn't been solved throw an exception
	if(!solved){
		throw unsolved();
	}
	return *primes.end();
}

void Problem7::reset(){
	Problem::reset();
}