Added Iterative deepening search in search.ipynb (#879)

Author: CharuChhimpa

search.ipynb

@@ -1639,6 +1639,41 @@
     "               problem=romania_problem)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 8. Iterative deepening search\n",
+    "\n",
+    "Let's change all the 'node_colors' to starting position and define a different problem statement.  "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def iterative_deepening_search_for_vis(problem):\n",
+    "    for depth in range(sys.maxsize):\n",
+    "        iterations, all_node_colors, node=depth_limited_search_for_vis(problem)\n",
+    "        if iterations:\n",
+    "            return (iterations, all_node_colors, node)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "all_node_colors = []\n",
+    "romania_problem = GraphProblem('Arad', 'Bucharest', romania_map)\n",
+    "display_visual(romania_graph_data, user_input=False, \n",
+    "               algorithm=iterative_deepening_search_for_vis, \n",
+    "               problem=romania_problem)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},