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29 lines
663 B
Python
29 lines
663 B
Python
### Remove Duplicates from Sorted Array in-place
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def remove_duplicates(nums: list[int]) -> int:
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arr_i, dup_i = 0, 1
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while arr_i < len(nums) and dup_i < len(nums):
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if nums[arr_i] == nums[dup_i]:
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dup_i += 1
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else:
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arr_i += 1
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nums[arr_i] = nums[dup_i]
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for i in range(arr_i + 1, dup_i):
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nums[i] = '_'
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return dup_i - arr_i - 1, nums
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if __name__ == "__main__":
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nums = [0, 0, 1, 1, 1, 2, 2, 3, 3, 4]
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assert(remove_duplicates(nums) == (5, [0, 1, 2, 3, 4, '_', '_', '_', '_', '_']))
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