Merge pull request #23 from UofT-DSI/alex-assignment-1-typos

Fixed typos in assignment_1.ipynb

Author: saliaqat

02_activities/assignments/assignment_1.ipynb

@@ -82,7 +82,7 @@
     "#         self.val = val\n",
     "#         self.left = left\n",
     "#         self.right = right\n",
-    "def is_symmetric(root: TreeNode) -> int:\n",
+    "def is_duplicate(root: TreeNode) -> int:\n",
     "  # TODO"
    ]
   },
@@ -111,7 +111,7 @@
     "\n",
     "  ![](./images/q1_ex3.png)\n",
     "\n",
-    "  Input: `root = [10, 9, 8, 7]`\n",
+    "  Input: `root = [10, 9, 7, 8]`\n",
     "\n",
     "  Output: [[10, 7], [10, 9, 8]]\n",
     "\n",
@@ -257,7 +257,7 @@
    "metadata": {},
    "source": [
     "\n",
-    "-   Explain the problem’s and space complexity\n"
+    "-   Explain the problem’s time and space complexity\n"
    ]
   },
   {