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목록Construct Binary Tree from Preorder and Inorder Traversal (1)
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LeetCode: 105. Construct Binary Tree from Preorder and Inorder Traversal
재귀로 풀어주자 # 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 buildTree(self, preorder: List[int], inorder: List[int]) -> Optional[TreeNode]: return self.builder(preorder, inorder) def builder(self, preorder, inorder): if not preorder: return None head = TreeNode(val..
Computer Science/Coding Test
2021. 10. 20. 16:42