Solution: Subarray Sum Equals K
Understand how to solve the problem of finding the total number of contiguous subarrays whose sum equals k by using prefix sums and hash maps. Learn to implement a one-pass solution with O(n) time complexity and manage prefix sums to efficiently count valid subarrays.
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We'll cover the following...
Statement
Given an array of integers nums and an integer k, determine the total number of subarrays whose sum is exactly equal to k.
Note: A subarray is a contiguous, non empty sequence of elements within an array.
Constraints:
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