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推廣網站開發,包含 Laravel 和 Kotlin 後端撰寫、自動化測試、讀書心得等。Taiwan Kotlin User Group 管理員。

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Hi, here’s your problem today. This problem was recently asked by Amazon:

Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If there isn’t one, return 0 instead.


Input: s = 7, nums = [2,3,1,2,4,3]
Output: 2

Explanation: the subarray [4,3] has the minimal length under the problem constraint.

Here is the method signature:

class Solution:
  def minSubArrayLen(self, nums, s):
    # Fill this in

print Solution().minSubArrayLen([2, 3, 1, 2, 4, 3], 7)
# 2