minimum-size-subarray-sum

minimum-size-subarray-sum


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 there is no such subarray, return 0 instead.



 


Example 1:



Input: target = 7, nums = [2,3,1,2,4,3]
Output: 2
Explanation: The subarray [4,3] has the minimal length under the problem constraint.


Example 2:



Input: target = 4, nums = [1,4,4]
Output: 1


Example 3:



Input: target = 11, nums = [1,1,1,1,1,1,1,1]
Output: 0


 


Constraints:




  • 1 <= target <= 109

  • 1 <= nums.length <= 105

  • 1 <= nums[i] <= 104



 


Follow up: If you have figured out the O(n) solution, try coding another solution of which the time complexity is O(n log(n)).

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