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Given an array of integers a, your task is to find how many of its contiguous subarrays of length m contain a pair of integers with a sum equal to k. More formally, given the array a, your task is to count the number of indices 0 ≤ i ≤ a.length - m such that a subarray [a[i], a[i + 1], ..., a[i + m - 1]] contains at least one pair (a[s], a[t]), where: s ≠ t a[s] + a[t] = k
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Junior Software Engineer

Interviewed at ZipRecruiter

3.4★
Jan 4, 2024

Given an array of integers a, your task is to find how many of its contiguous subarrays of length m contain a pair of integers with a sum equal to k. More formally, given the array a, your task is to count the number of indices 0 ≤ i ≤ a.length - m such that a subarray [a[i], a[i + 1], ..., a[i + m - 1]] contains at least one pair (a[s], a[t]), where: s ≠ t a[s] + a[t] = k

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