Given a string s containing only three types of characters: '(', ')' and '*', return true if s is valid.
The following rules define a valid string:
+ +'(' must have a corresponding right parenthesis ')'.')' must have a corresponding left parenthesis '('.'(' must go before the corresponding right parenthesis ')'.'*' could be treated as a single right parenthesis ')' or a single left parenthesis '(' or an empty string "".+
Example 1:
+Input: s = "()" +Output: true +
Example 2:
+Input: s = "(*)" +Output: true +
Example 3:
+Input: s = "(*))" +Output: true ++
+
Constraints:
+ +1 <= s.length <= 100s[i] is '(', ')' or '*'.