Fixed error with problem 2 not compiling

Algorithms.hpp

@@ -260,7 +260,7 @@ T getProduct(const std::vector<T>& ary){
 //This is a function that searches a vecter for an element. Returns true if they key is found in list
 template <class T>
 bool isFound(std::vector<T> ary, T key){
-	std::vector<T>::iterator location = std::find(ary.begin(), ary.end(), key);
+	typename std::vector<T>::iterator location = std::find(ary.begin(), ary.end(), key);
 	if(location == ary.end()){
 		return false;
 	}