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
.
Example 1:
Input: nums = [1,1,1], k = 2 Output: 2
Example 2:
Input: nums = [1,2,3], k = 3 Output: 2
Constraints:
1 <= nums.length <= 2 * 104
-1000 <= nums[i] <= 1000
-107 <= k <= 107
Subarray Sum Equals K Solutions
✅Time: O(n)
✅Space: O(n)
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