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1 files changed, 36 insertions, 0 deletions

diff --git a/108/main.py b/108/main.py
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+++ b/108/main.py
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+#!/usr/bin/env python3
+# https://yellowcoding.com/leetcode-108-convert-sorted-array-to-binary-search-tree/
+
+from typing import List, Optional
+
+# 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 sortedArrayToBST(self, nums: List[int]) -> Optional[TreeNode]:
+        def fun(nums: List[int], low: int, high: int):
+            if low > high:
+                return None
+
+            mid: int = int((low + high) / 2)
+            node = TreeNode(val=nums[mid])
+            node.left = fun(nums, low, mid - 1)
+            node.right = fun(nums, mid + 1, high)
+            return node
+
+        return fun(nums, 0, len(nums) - 1)
+
+
+def main():
+    solution = Solution()
+    print(solution.sortedArrayToBST([-10, -3, 0, 5, 9]))
+    print(solution.sortedArrayToBST([1, 3]))
+
+
+if __name__ == "__main__":
+    main()