75.py

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sample 24 ms submission
class Solution:
    def sortColors(self, nums: List[int]) -> None:
        """
        Do not return anything, modify nums in-place instead.
        """
        nums.sort()
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sample 12912 kb submission
class Solution:
    def sortColors(self, nums: List[int]) -> None:
        """
        Do not return anything, modify nums in-place instead.
        """

        low, mid, high = 0, 0, len(nums) - 1

        while mid <= high:
            if nums[mid] == 0:
                nums[low], nums[mid] = nums[mid], nums[low]
                low += 1
                mid += 1
            elif nums[mid] == 2:
                nums[high], nums[mid] = nums[mid], nums[high]
                high -= 1
            else:
                mid += 1
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