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feat: [LeetCode #2215] Find The Difference Of Two Arrays #7

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Merged

onixlas merged 1 commit into main from feature/2215-find-the-difference-of-two-arrays

Aug 18, 2025

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feat: [LeetCode #2215] Find The Difference Of Two Arrays #7

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feat: [LeetCode #2215] Find The Difference Of Two Arrays

onixlas Aug 18, 2025

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Empty file added src/hashmap_set/__init__.py

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Empty file added src/hashmap_set/find_the_difference_of_two_arrays/__init__.py

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12 changes: 12 additions & 0 deletions src/hashmap_set/find_the_difference_of_two_arrays/solution.py

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Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,12 @@
	from typing import List


	class Solution:
	def findDifference(self, nums1: List[int], nums2: List[int]) -> List[List[int]]:
	set1 = set(nums1)
	set2 = set(nums2)

	ans1 = set(num for num in nums1 if num not in set2)
	ans2 = set(num for num in nums2 if num not in set1)

	return [list(ans1), list(ans2)]

11 changes: 11 additions & 0 deletions tests/test_find_the_difference_of_two_arrays.py

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Original file line number	Diff line number	Diff line change
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	import pytest
	from src.hashmap_set.find_the_difference_of_two_arrays.solution import Solution


	@pytest.mark.parametrize(
	"nums1, nums2, expected",
	[([1, 2, 3], [2, 4, 6], [[1, 3], [4, 6]]), ([1, 2, 3, 3], [1, 1, 2, 2], [[3], []])],
	)
	def test_find_the_difference_of_two_arrays(nums1, nums2, expected):
	solution = Solution()
	assert solution.findDifference(nums1, nums2) == expected