Cumulative Sum

Subarray Sum Equals K

December 26, 2023
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Hash Table, Cumulative Sum

Problem # Given an array of integers nums and an integer k, return the total number of continuous subarrays whose sum equals to k. Solution # To solve the problem of finding the total number of continuous subarrays whose sum equals a given integer k, a common and efficient approach is to use a cumulative sum combined with a hash table. This method allows us to efficiently track the sum of subarrays and check for the existence of the required sum. ...