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Grokking the Coding Interview Patterns in Go

Solution: Find the Distance Value Between Two Arrays

Understand how to compute the distance value between two integer arrays by sorting one array and using binary search. Learn to efficiently identify elements in the first array that do not have close counterparts within a given threshold in the second array. This lesson helps you apply sorting and binary search to solve distance-based array problems with optimal time complexity.

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Statement

You are given two integer arrays, arr1 and arr2, along with an integer d. Your task is to find and return the distance value between these arrays.

Note: The distance value is defined as the count of elements in arr1 for which there is no element in arr2 such that ∣arr1[i]−arr2[j]∣<=|arr1[i]-arr2[j]| <= ...