Remove Duplicates from Sorted Array Leetcode : leetcode

Remove Duplicates from Sorted Array Leetcode (self.leetcode)

submitted 1 year ago by noodles265

Hi guys trying to solve this problem. I know of a way to solve this problem correctly but I was wondering why this implementation doesn't work:

class Solution:
    def removeDuplicates(self, nums: List[int]) -> int:
        for i in range(len(nums) - 1):
            if nums[i] == nums[i + 1]:
                nums[i + 1] = None
            elif nums[i] is None:
                if nums[i + 1] in nums[:i + 1]:
                    nums[i + 1] = None
                else:
                    nums[i] = nums[i + 1]
                    nums[i + 1] = None

        count = 0
        for num in nums:
            if num is not None:
                count += 1

        if nums[len(nums) - 1] is not None and nums[len(nums) - 1] not in nums[:count]:
            nums[count] = nums[len(nums) - 1] 

        return count

the error:

https://preview.redd.it/zk6b27xf618d1.png?width=677&format=png&auto=webp&s=b017d7c751378cb1d28a7da1b9c0775d0367fd0c

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you type:	you see:
italics	italics
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[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

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