Rename year directories to allow natural ordering

year2/semester2/CT255/Assignments/Assigment-09/Node.java

@@ -0,0 +1,15 @@
+public class Node {
+    public int x; 
+    public int y; 
+
+    public int g;       // cost of getting from the starting node to this node 
+    public int h;       // estimated heuristic cost of getting from this node to the target node 
+    public int f;       // sum of g & h, the algorithm's best current estimate as to the total cost of travelling from the starting location to the target location via this node 
+    public boolean closed = false; 
+    public boolean open = false;
+
+    public Node(int x, int y) {
+        this.x = x; 
+        this.y = y;
+    }
+}