384.py

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sample 268 ms submission
class Solution:

    def __init__(self, nums: List[int]):
        self.nums = nums

    def reset(self) -> List[int]:
        """
        Resets the array to its original configuration and return it.
        """
        return self.nums

    def shuffle(self) -> List[int]:
        """
        Returns a random shuffling of the array.
        """
        return sorted(self.nums, key = lambda x: random.random())
        


# Your Solution object will be instantiated and called as such:
# obj = Solution(nums)
# param_1 = obj.reset()
# param_2 = obj.shuffle()
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sample 19028 kb submission
class Solution:

    def __init__(self, nums: List[int]):
        self.array = nums
        self.original = list(nums)

    def reset(self) -> List[int]:
        """
        Resets the array to its original configuration and return it.
        """
        self.array = self.original
        self.original = list(self.original)
        return self.array

    def shuffle(self) -> List[int]:
        """
        Returns a random shuffling of the array.
        """
        for i in range(len(self.array)):
            swap_idx = random.randrange(i, len(self.array))
            self.array[i], self.array[swap_idx] = self.array[swap_idx], self.array[i]
        return self.array


# Your Solution object will be instantiated and called as such:
# obj = Solution(nums)
# param_1 = obj.reset()
# param_2 = obj.shuffle()
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