20. Valid Parentheses.md#7
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tshimosake
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Feb 7, 2025
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| 20. Valid Parentheses | |||
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まだ完成していないので終わり次第レビュー依頼に投げさせていただきます。
その際はよろしくおねがいいたします
oda
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Feb 7, 2025
| (https://discord.com/channels/1084280443945353267/1201211204547383386/1202541275115425822) | ||
| 上の用語わからなすぎて調べる。 | ||
| おそらく形式言語理論の概念を用いてこの問題を解釈している？ | ||
| うちの学校のカリキュラムにはないが、形式言語理論の勉強はSWEとして必須？ |
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そうだったんですね。余力があれば勉強してみます！
oda
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Feb 7, 2025
| 2回目3分38 | ||
| 3回目2分48 | ||
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| '''python |
oda
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Feb 7, 2025
| ```python | ||
| class Solution: | ||
| def isValid(self, s: str) -> bool: | ||
| valied_input = ["(",")","{","}","[","]"] |
kzmkt
reviewed
Feb 9, 2025
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| https://github.com/yus-yus/leetcode/pull/6 | ||
| かなり勉強になった。 | ||
| 特に問題文にはないが、brackets以外が入力として与えられた場合も考えているのがすごくためになった。 |
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これは凄く大切ですね。
この練習では動くかどうかはそれほど関係ないという話があったと思いますが、実際コード書く時は動くのはスタートラインで、こういう本来の機能以外で考える事の方が多かったりはします。
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20. Valid Parentheses
Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
An input string is valid if:
Open brackets must be closed by the same type of brackets.
Open brackets must be closed in the correct order.
Every close bracket has a corresponding open bracket of the same type.
次は206. Reverse Linked List