id20. Valid Parentheses Add to List QuestionEditorial Solution My Submissions Total Accepted: 163285 Total Submissions: 507096 Difficulty: Easy Contributors: Admin Given a string containing just the characters ‘(‘, ‘)’, ‘{‘, ‘}’, ‘[‘ and ‘]’, determine if the input string is valid.
The brackets must close in the correct order, “()” and “()[]{}” are all valid but “(]” and “([)]” are not.
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