1 files changed, 49 insertions, 0 deletions
diff --git a/872/main.py b/872/main.py
new file mode 100644
index 0000000..5bf1f6c
--- /dev/null
+++ b/872/main.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+import typing
+
+
+class TreeNode:
+    def __init__(self, val=0, left=None, right=None):
+        self.val = val
+        self.left = left
+        self.right = right
+
+
+class Solution:
+    def traverse(self, node: typing.Optional[TreeNode], leafSeq):
+        if node is None:
+            return
+
+        if node.left is None and node.right is None:
+            leafSeq.append(node.val)
+            return
+
+        self.traverse(node.left, leafSeq)
+        self.traverse(node.right, leafSeq)
+
+    def leafSimilar(
+        self, root1: typing.Optional[TreeNode], root2: typing.Optional[TreeNode]
+    ) -> bool:
+        leafSeq1: typing.List[int] = []
+        leafSeq2: typing.List[int] = []
+
+        self.traverse(root1, leafSeq1)
+        self.traverse(root2, leafSeq2)
+
+        if len(leafSeq1) != len(leafSeq2):
+            return False
+
+        for e1, e2 in zip(leafSeq1, leafSeq2):
+            if e1 != e2:
+                return False
+
+        return True
+
+
+def main():
+    solution = Solution()
+    # print(solution.leafSimilar())
+
+
+if __name__ == "__main__":
+    main()