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Given an array nums, return diff where diff[i] = (number of distinct elements in nums[0..i]) minus (number of distinct elements in nums[i+1..n-1]). This is solved by tracking distinct counts for prefixes and suffixes (e.g., with sets) to compute all differences efficiently.
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Leetcode 2670. Find the Distinct Difference Array
Reported Jan 26, 2025 · 1 source report
JUNIOR
Source snapshot: Nov 12, 2026
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