Practice Score of Parentheses
Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.
Problem Statement
Return the score of balanced parentheses string s. A single pair () scores 1. Concatenating two balanced strings adds their scores, while enclosing a nonempty balanced string in another pair of parentheses doubles its score.
Source: Score of Parentheses on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
Input
s = "()"
Output
1
# Example 2
Input
s = "(())"
Output
2
# Example 3
Input
s = "()()"
Output
2
Constraints
2 <= s.length <= 50
s consists of only '(' and ')'.
s is a balanced parentheses string.
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