230. Kth Smallest Element in a BST - #117
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kazuki-official wants to merge 1 commit into
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nodchip
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Jul 9, 2026
| node_infos.pop(); | ||
| TreeNode* node = node_information._node; | ||
| State state = node_information._state; | ||
| if (state == State::Unvisited) { |
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個人的には、 enum の値に応じて処理を切り替えるコードを書く際は、 switch 文を使用するようにしています。理由は、カバーしていない列挙子があった場合に、早めに発見できるようにするためです。
switch (state) {
case State::Unvisited:
...
case State::Visited:
...
default:
// ここでエラーログを出力したり、失敗を意味する値を return したり、例外を送出したりする。
}趣味の範囲かもしれません。
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https://leetcode.com/problems/kth-smallest-element-in-a-bst/description/