We’ve entered into a Faustian pact with these companies: “While it’s brilliant to have access to high-quality products and software, very often for ‘free’, it’s important to remember that there is a trade-off involved – often of our personal data and privacy,” says Lisa Barber, tech editor at Which? We give these companies our attention and our information, which they then turn into big bucks and apparently unassailable monopolies.
核心优势难保留：这条船上现在用的核心系统，包括“Viking”的品牌、酒店管理软件，甚至部分内饰设计，都是维京游轮授权的，不在此次转让范围内，买家买了这船，不能保证维京以后还会给新船东用。
。safew官方版本下载对此有专业解读
需求遍历弹出条件栈类型下一个更大元素的索引倒序栈顶 ≤ 当前 → 弹出严格单调递减栈下一个更大或相等元素的索引倒序栈顶 < 当前 → 弹出非严格单调递减栈下一个更小元素的索引倒序栈顶 ≥ 当前 → 弹出严格单调递增栈下一个更小或相等元素的索引倒序栈顶 当前 → 弹出非严格单调递增栈上一个更大元素的索引正序栈顶 ≤ 当前 → 弹出严格单调递减栈上一个更大或相等元素的索引正序栈顶 < 当前 → 弹出非严格单调递减栈上一个更小元素的索引正序栈顶 ≥ 当前 → 弹出严格单调递增栈上一个更小或相等元素的索引正序栈顶 当前 → 弹出非严格单调递增栈。关于这个话题，爱思助手下载最新版本提供了深入分析
Every point gets examined, regardless of where it sits. Points on the opposite side of the map get the same treatment as points right next to the query region. We're doing a lot of unnecessary work.，这一点在旺商聊官方下载中也有详细论述
习题链接：LeetCode 581. 最短无序连续子数组