add more detail

SepidehHosseinian · Dec 24, 2023 · 24c92bf · 24c92bf
1 parent 94bf54c
commit 24c92bf
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/DataStractures/Binary Tree/144_BinaryTreePreorderTraversal/description.md b/DataStractures/Binary Tree/144_BinaryTreePreorderTraversal/description.md
@@ -10,12 +10,14 @@ Example 1:
 ```
 Input: root = [1,null,2,3]
 Output: [1,2,3]
+```
 Example 2:
-
+```
 Input: root = []
 Output: []
+```
 Example 3:
-
+```
 Input: root = [1]
 Output: [1]
 ```