# Given a string containing only three types of characters: '(', ')' and '*', # write a function to check whether this string is valid. We define the validity of a string by these rules: # 1. Any left ...
# If the character is a closed parenthesis, check if the last element in the stack is the corresponding open parenthesis elif stack and stack[-1] == closedParentheses[c]: stack.pop() # If the last ...
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