Commit caf07f5

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feat: add contains duplicate in python

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Original file line number	Diff line number	Diff line change
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	`1`	`+from typing import List`
	`2`	`+`
	`3`	`+def containsDuplicate(nums: List[int]) -> bool:`
	`4`	`+ hashset = set()`
	`5`	`+`
	`6`	`+ for n in nums:`
	`7`	`+ if n in hashset:`
	`8`	`+ return True`
	`9`	`+ hashset.add(n)`
	`10`	`+ return False`
	`11`	`+`
	`12`	`+assert containsDuplicate([1,2,3,1]) == True`
	`13`	`+assert containsDuplicate([1,2,3,4]) == False`
	`14`	`+assert containsDuplicate([1,1,1,3,3,4,3,2,4,2]) == True`

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