Updated to work with the new libraries

headers/Problems/Problem28.hpp

@@ -1,11 +1,11 @@
 //ProjectEuler/ProjectEulerCPP/headers/Problems/Problem28.hpp
 //Matthew Ellison
 // Created: 09-21-19
-//Modified: 08-28-20
+//Modified: 07-02-21
 //What is the sum of the numbers on the diagonals in a 1001 by 1001 spiral formed by starting with the number 1 and moving to the right in a clockwise direction a 5 by 5 spiral
 //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/myClasses
 /*
-	Copyright (C) 2020  Matthew Ellison
+	Copyright (C) 2021  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
@@ -20,14 +20,12 @@
 	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 PROBLEM28_HPP
 #define PROBLEM28_HPP
 
 
-#include <string>
 #include <cinttypes>
+#include <string>
 #include <vector>
 #include "Problem.hpp"
 
@@ -50,14 +48,16 @@ public:
 	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
+	virtual std::string getResult() const;	//Return a string with the solution to the problem
 	std::vector<std::vector<int>> getGrid() const;	//Returns the grid
 	uint64_t getSum() const;	//Returns the sum of the diagonals
 };
 
+
 /* Results:
 The sum of the diagonals in the given grid is 669171001
 It took an average of 1.254 milliseconds to run this problem over 100 iterations
 */
 
-#endif  //PROBLEM28_HPP
+
+#endif	//PROBLEM28_HPP