setup project for assignment 3

Assignment_3/lib/Node.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <mutex>
+
+class Node { 
+    protected:
+        int data; 
+        bool dummy;
+        std::mutex mut;
+
+    public:
+        Node* next;
+        bool deleted;
+
+        Node(int element);
+        static Node* Dummy();
+        //  Dummy();
+
+        void lock();
+        void unlock();
+        bool is_smaller_than(int n);
+        bool is_smaller_than(Node* n);
+        bool is_equal(int n);
+        bool is_dummy();
+        int get_data();
+};