[jasbob-leetcode-bot] automated upload of <medium> 00988-smallest-string-starting-from-leaf

Author: jasbob-bot

medium/00988-smallest-string-starting-from-leaf.py

@@ -0,0 +1,12 @@
+# https://leetcode.com/problems/smallest-string-starting-from-leaf/?envType=daily-question&envId=2024-04-17
+                return ''
+            ret.appendleft(node.val)
+            if node.left
+            if not node:
+        def helper(node, ret):
+    def smallestFromLeaf(self, root: Optional[TreeNode]) -> str:
+                r = helper(node.left, ret)
+                r = helper(node.right, ret)
+            if node.right
+            return ''.join(chr(k + ord('a')) for k in ret)
+        return