2025-08-21 16:04:22 +0000 UTC

Subarrays Distinct Element Sum of Squares I
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Code

class Solution:
    def sumCounts(self, nums: List[int]) -> int:
        n = len(nums)
        result = 0
        for i in range(n):
            s = set()
            for j in range(i, n):
                s.add(nums[j])
                result += len(s) ** 2
        return result