diff --git a/100-same-tree/100-same-tree.py b/100-same-tree/100-same-tree.py
new file mode 100644
index 0000000..1c47369
--- /dev/null
+++ b/100-same-tree/100-same-tree.py
@@ -0,0 +1,16 @@
+# Definition for a binary tree node.
+# class TreeNode:
+#     def __init__(self, val=0, left=None, right=None):
+#         self.val = val
+#         self.left = left
+#         self.right = right
+class Solution:
+    def isSameTree(self, p: Optional[TreeNode], q: Optional[TreeNode]) -> bool:
+        if p == None and q == None:
+            return True
+        
+        if p == None or q == None:
+            return False
+        
+        if p.val == q.val:
+            return self.isSameTree(p.left, q.left) and self.isSameTree(p.right, q.right)
\ No newline at end of file