Agar sizda BFS-ga asoslangan ikki burchakli daraxtni o'tish algoritmi bo'lsa, siz uni postfix usulida bosib chiqarasiz. Python dasturida quyidagicha amalga oshiriladi: `` python class TreeNode: def __init__(self, val=0, left=None, right=None): self.val = val self.left = left self.right = right def bfs_postfix(root): if not root: return [] result = [] queue = [root] while queue: level = [] level_size = len(queue) for _ range in(level_size): node = queue.pop(0) if node.left: queue.appendnode.left) if node.appendnode.left)) if node.appendnode.left = root.right = root.
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