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Grokking the Coding Interview Patterns in Go

Solution: Intersection of Two Arrays II

Explore how to solve the intersection of two arrays problem by using hash maps to count element frequencies and return common elements with correct multiplicities. This lesson teaches an efficient coding pattern to handle similar interview challenges.

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Statement

Given two integer arrays nums1 and nums2, return an array representing their intersection. Each element in the result should appear exactly as many times as it appears in both arrays. The result may be returned in any order.

Constraints:

  • 1≤1 \leq nums1.length, nums2.length ≤1000\leq 1000 ...