@@ -0,0 +1,247 @@
+package org.psjava.goods;%0A%0Aimport org.psjava.ds.heap.BinaryHeapFactory;%0Aimport org.psjava.ds.heap.HeapFactory;%0A%0Apublic class GoodHeapFactory %7B%0A%0A    public static HeapFactory getInstance() %7B%0A        return BinaryHeapFactory.getInstance();%0A    %7D%0A%0A%7D%0A

add one good - GoodHeapFactory