原文:[LeetCode] 1249. Minimum Remove to Make Valid Parentheses 移除無效的括號

Given a stringsof , and lowercase English characters. Your task is to remove the minimum number of parentheses or , in any positions so that the resultingparentheses stringis valid and returnanyvalid ...

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[LeetCode] 20. Valid Parentheses 驗證括號

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid ...

Tue Apr 14 20:53:00 CST 2015 0 19939
 
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