Initial data commit

Task/Priority-queue/Zkl/priority-queue-2.zkl

@@ -0,0 +1,13 @@
+pq:=PQ();
+foreach x in
+      (T("Clear drains",3, "Feed cat",4, "Make tea",5, "Solve RC tasks",1, "Tax return",2,
+         "Clean room",10,"Wash cat",10)){
+   pq.add(x,__xWalker.next())
+}
+pq.println();
+println("Number 1 thing to do: ",pq.peek());
+println("Top 2 things to do: ",pq.walker().walk(2));
+println("Do this next year: ",pq.walker().walk()[-1]);
+println("ToDo list:");
+foreach item in (pq){ item.println() }
+pq.println();