Minimum Size Subarray Sum
Medium
Given an array of positive integers nums and a positive integer target, return the minimal length of a subarray whose sum is greater than or equal to target. If no such subarray exists, return 0.
Constraints
- 1 <= target <= 109
- 1 <= nums.length <= 105
- 1 <= nums[i] <= 104
Example
Input: target = 7, nums = [2,3,1,2,4,3]
Expected Output: 2