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목록Convert Sorted List to Binary Search Tree (2)
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O(N) Time complexity, O(1) Memory Solution using Recursion # Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next # 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 sortedListToBST(self, he..
# Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next # 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 sortedListToBST(self, head: Optional[ListNode]) -> Optional[TreeNode]: if not head:..