Open sunyanhust opened 4 years ago
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Hi!
https://sunyanhust.github.io/post/leetcodeyou-xiao-de-gua-hao/
题目 给定一个只包括 '(',')','{','}','[',']' 的字符串,判断字符串是否有效。 有效字符串需满足:
左括号必须用相同类型的右括号闭合。 左括号必须以正确的顺序闭合。
注意:空字符串可被认为是有效字符串。 示例 1:...