given an array with n objects colored red white or blue sort them so that objects of the same color are adjacent with the colors in the order red white and blue here we will use the integers 0 1 and 2 to represent the color red white and blue respectively note you are not suppose to use the library s sort function for this problem
def sort_colors(nums):
    i = j = 0
    for k in range(len(nums)):
        v = nums[k]
        nums[k] = 2
        if v < 2:
            nums[j] = 1
            j += 1
        if v == 0:
            nums[i] = 0
            i += 1


if __name__ == "__main__":
    nums = [0, 1, 1, 1, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 2, 2]
    sort_colors(nums)
    print(nums)