103. Binary Tree Zigzag Level Order Traversal#41
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nodchip
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Jul 1, 2026
| if node.right: | ||
| pending_nodes.append(node.right) | ||
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| if len(zigzag_level) % 2 != 0: |
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ありがとうございます。確かにwhile文を抜けた後でもできますね。
rimokem
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Jul 2, 2026
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| if len(zigzag_levels) % 2 != 0: | ||
| zigzag_levels.append(list(reversed(current_level))) | ||
| continue |
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ここは階層の偶奇で場合分けしており対称性があるので、if-elseで書くほうが分かりやすいと感じました。
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ありがとうございます。実はif-elseで書くか迷いました。
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103. Binary Tree Zigzag Level Order Traversal
次回予告: 105. Construct Binary Tree from Preorder and Inorder Traversal