From e1a2904cfe35e4dd2e443811ca6763f46c3d1adb Mon Sep 17 00:00:00 2001
From: marina <138340846+bt3gl-cryptographer@users.noreply.github.com>
Date: Thu, 3 Aug 2023 13:56:53 -0700
Subject: [PATCH] Create bst_pre_sucessor.py

---
 trees/bst_pre_sucessor.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 trees/bst_pre_sucessor.py

diff --git a/trees/bst_pre_sucessor.py b/trees/bst_pre_sucessor.py
new file mode 100644
index 0000000..db3bcc7
--- /dev/null
+++ b/trees/bst_pre_sucessor.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# author: bt3gl
+
+
+def successor(root):
+  
+  root = root.right
+  
+  while root.left:
+      root = root.left
+      
+  return root
+
+
+def predecessor(root):
+  
+  root = root.left
+  
+  while root.right:
+      root = root.right
+  
+  return root