problem0209

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Published: Jul 25, 2019 License: MIT Imports: 0 Imported by: 0

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209. Minimum Size Subarray Sum

题目

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.

For example, given the array [2,3,1,2,4,3] and s = 7, the subarray [4,3] has the minimal length under the problem constraint.

More practice:

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

解题思路

充分利用题目信息,切片中的数,全部是正数。

见程序注释

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