setup project for assignment 3

Assignment_3/lib/Set.cpp

@@ -0,0 +1,26 @@
+#include "Set.h"
+#include "Node.h"
+
+#include <iostream>
+#include<sstream>
+
+Set::Set(std::string _name){
+    name = _name;
+    first = Node::Dummy();
+    first->next = Node::Dummy();
+}
+
+bool Set::add(int element) { return false; }
+bool Set::rmv(int element) { return false; }
+bool Set::ctn(int element) { return false; }
+std::string Set::get_name() { return name; }
+
+std::string Set::print_set(){
+    Node* c = this->first->next;
+    std::stringstream ss;
+    while (!c->is_dummy()) {
+        ss << c->get_data() << " ";
+        c = c->next;
+    }
+    return ss.str();
+}