Find the Distinct Difference Array
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution:\n    def distinctDifferenceArray(self, nums: List[int]) -> List[int]:\n        res =[]\n        for num in range(len(nums)):\n            prefix_num = len(set(nums[:num+1]))\n            suffix_num = len(set(nums[num+1:]))\n            res.append(prefix_num - suffix_num)\n        return res\n```
['Python3']