Subarrays with K Different Integers

Counting exactly-k windows as at-most(k) minus at-most(k − 1), because “exactly k” is not monotone.

Not attemptedLeetCodeHard, unverified labelAccess: not determinedExtra, for review rotation

The exercise happens on LeetCode. Canonical link: https://leetcode.com/problems/subarrays-with-k-different-integers/. Link check: not checkable automatically (5 Oct 2026). Opened from this app 0 times; opening is not counted as an attempt.

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