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Grokking the Coding Interview Patterns in Go

Subarray Sum Equals K

Explore how to identify the total number of contiguous subarrays within an integer array that sum exactly to k. Understand the problem constraints and implement your solution using hash maps to optimize performance in coding interviews.

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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:

  • 1≤1 \leq nums.length ≤2 ...