3471. Find the Largest Almost Missing Integer

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You are given an integer array nums and an integer k. An integer x is almost missing from nums if x appears in exactly one subarray of size k within nums. Return the largest almost missing integer from nums. If no such integer exists, return -1. A subarray is a contiguous sequence of elements within an array. Example 1: Input: nums = [3,9,2,1,7], k = 3 Output: 7 Explanation: - 1 appears i

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solution.cppC++17

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