Subarray Sum Equals K. Jul 28, 2025 · If currSum is equal to k, we’ve found

Jul 28, 2025 · If currSum is equal to k, we’ve found a valid subarray from index 0 to i. Jan 13, 2026 · I recommend you treat this as a mental template: prefix sum + earliest index stored in a hash map. Illustration: Subarray Sum Equals K - Given an array of integers nums and an integer k, return the total number of subarrays whose sum equals to k. count = 0 . You pick a start index i, then expand j to the right and track the running sum. This subtracted value is the complementPrefixSum. - Explain the difference between REST and GraphQL. What is Subarray Sum? The subarray sum is the sum of elements in a subarray. Your task is to find the length of the longest Sub-Array with sum of the elements equal to the given value K. It can be solved in time and space.

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