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Count the number of index triplets (i<j<k) in an array whose three values are pairwise distinct. With n ≤ 100 this reduces to combinatorially counting distinct-value triples (e.g., via frequency counts) rather than heavy algorithms.
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Leetcode 2475. Number of Unequal Triplets in Array
Reported Jan 12, 2025 · 1 source report
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