leetcode主要算法

【leetcode主要算法】1、尺取法 , 对于孤陋寡闻的我来说 , 刷题之前没听说过 , 后来了解了一下这个方法 , 感觉好多题目都可以用这个方法解决 , 在leetcode上有一类题叫做Two Pointers , 其中一部分题目就应该使用尺取法来解决 。
2、在介绍尺取法的使用之前 , 先看一个典型的实例Leetcode209. Minimum Size Subarray Sum: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.

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