13 lines
543 B
Python
13 lines
543 B
Python
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class py_solution:
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def is_valid_parenthese(self, str1):
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stack, pchar = [], {"(": ")", "{": "}", "[": "]"}
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for parenthese in str1:
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if parenthese in pchar:
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stack.append(parenthese)
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elif len(stack) == 0 or pchar[stack.pop()] != parenthese:
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return False
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return len(stack) == 0
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print(py_solution().is_valid_parenthese("(){}[]"))
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print(py_solution().is_valid_parenthese("()[{)}"))
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print(py_solution().is_valid_parenthese("()"))
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