2085. Count Common Words With One Occurrence

LeetCodeArrayHash TableStringCountingOpen on judge ↗

Given two string arrays words1 and words2, return the number of strings that appear exactly once in each of the two arrays. Example 1: Input: words1 = ["leetcode","is","amazing","as","is"], words2 = ["amazing","leetcode","is"] Output: 2 Explanation: - "leetcode" appears exactly once in each of the two arrays. We count this string. - "amazing" appears exactly once in each of the two arrays. We

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solution.cppC++17

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