最近美国股市大跌，每天早上醒来，都看到跌了个6%，感觉确实不爽。和周围的朋友交流后，发现大家很多都没有卖股票。有点后悔之前没有把公司股票都卖了。 在焦虑中看了各种专家建议，真的是各说风云，有人乐观，觉得年底经济会恢复到一月份的水平，也有人觉得长期的熊市，金融危机已经到来。 今天看到一本书，准备最近好好看一看，叫《穷查理年鉴》，里面有句话挺有意思的，不把事管好，就要被事管。这句话真是怒扎心了。也许我真的有些事情得多上点心，不能任之不管了。但是话也说回来，如果当时微软的股票很早就买了话，也不能见到它一路涨到190.总之吧，我对美国长期的经济还是看好的，对谷歌的发展也看好。所以最坏的情况，大概就是我被谷歌的股票套牢，过了3-4年再解套吧。 希望自己在这几年股市里学习一些人生经验，我向来都更看重经验和自己的成长，至于那些股票，也许过10年以后这些钱就没有那么重要了。

Problem Given a string and a string dictionary, find the longest string in the dictionary that can be formed by deleting some characters of the given string. If there are more than one possible results, return the longest word with the smallest lexicographical order. If there is no possible result, return the empty string. Example 1: Input: s = “abpcplea”, d = [“ale”,“apple”,“monkey”,“plea”] Output: “apple” Example 2: Input: s = “abpcplea”, d = [“a”,“b”,“c”]...

Starting from today 2019-11-01, I am going to study the course CMU 15-440 Distributed systems course on my own. I have prepared the challenges mentally and physically. The principle is to be curious about new technologies and learn something new, Most importantly, have fun! Resources Course dd website: https://www.synergylabs.org/courses/15-440/syllabus.html Day 0 Intro What is a distributed system? A collection of independent computers that appears to its users as a single coherent system....

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