Updated how results are retrieved

Headers/Problem18.hpp

@@ -79,7 +79,6 @@ public:
 	virtual void solve();	//Solve the problem
 	virtual void reset();	//Reset the problem so it can be run again
 	//Gets
-	virtual std::string getString() const;	//Return a string with the solution to the problem
 	std::string getPyramid();	//Returns the pyramid that was traversed as a string
 	std::string getTrail();		//Returns the trail the algorithm took as a string
 	int getTotal() const;		//Returns the total that was asked for