Subarray Sum Equals K

Given an array of integers and an integer k, return the total number of subarrays whose sum equals k. A subarray is a contiguous non-empty sequence of elements within an array.

Constraints

  • 1 <= nums.length <= 2 * 10^4
  • -1000 <= nums[i] <= 1000
  • -10^7 <= k <= 10^7
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class Solution:
def subarraySumEqualsK(self, nums, k) -> int:
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