its102.md.wk.11.fn.13.number02

class PythonLabActivity:
    def pow(self, x, n):
        if x == 0 or x == 1 or n == 1:
            return x

        if x == -1:
            if n % 2 == 0:
                return 1
            else:
                return -1
        if n == 0:
            return 1
        if n < 0:
            return 1 / self.pow(x, -n)
        val = self.pow(x, n // 2)
        if n % 2 == 0:
            return val * val
        return val * val * x


print(PythonLabActivity().pow(5, 4))
print(PythonLabActivity().pow(4, -3))
print(PythonLabActivity().pow(10, 2))