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25 lines
520 B
Python
25 lines
520 B
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# author: bt3gl
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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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