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Description
Given a balanced parentheses string s, return the score of the string.
The score of a balanced parentheses string is based on the following rule:
"()"has score1.ABhas scoreA + B, whereAandBare balanced parentheses strings.(A)has score2 * A, whereAis a balanced parentheses string.
Example 1:
Input: s = "()"
Output: 1
Example 2:
Input: s = "(())"
Output: 2
Example 3:
Input: s = "()()"
Output: 2
Constraints:
- 2 <=
s.length<= 50 sconsists of only'('and')'.sis a balanced parentheses string.
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