style: code style

wangyu95 · wangyu95 · commit 5af6c5989a9b · 2021-03-03T10:47:03.000+08:00
diff --git a/Readme.md b/Readme.md
@@ -1747,9 +1747,9 @@ def maxDepth(root):
 def isSameTree(p, q):
     if p == None and q == None:
         return True
-    elif p and q :
+    elif p and q:
         return p.val == q.val and isSameTree(p.left,q.left) and isSameTree(p.right,q.right)
-    else :
+    else:
         return False
 ```
 
