<ul data-eligibleForWebStory="false"><li>The problem involves efficiently adding values and counting pair sums across two arrays by implementing a class called FindSumPairs.</li><li>The class uses a frequency map for nums2 to optimize the count operation and handle multiple queries efficiently.</li><li>The code implementations in C++, Python, and JavaScript demonstrate the class structure and methods for adding values and counting pair sums.</li><li>Key takeaways include keeping nums1 static, using a hash map to track nums2's values, and utilizing hash maps and frequency counters for dynamic problem-solving.</li></ul>

⛴️Beginner-Friendly Guide "Find Sum Pairs with Dynamic Count Updates" – LeetCode 1865 (C++ | Python | JavaScript)

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