A recursive solution in Python


  • 0
    H
    class Solution(object):
        def myPow(self, x, n):
            """
            :type x: float
            :type n: int
            :rtype: float
            """
            def pow(x, n):
                if n == 1:
                    return x
                tmp = pow(x, n//2)
                return tmp*tmp if n%2 == 0 else tmp*tmp*x
            
            if n == 0:
                return 1
            res = pow(x, abs(n))
            return res if n>=0 else 1/res
    

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