本文来自Leader America，视频带来了IEEE 标准PTP（Precision Time Protocol）协议v2.1版本的新特性，主讲人是来自ALC NetworkX的Andreas Hildebrand。

今天小菌在写一个MapReduce程序时,在运行的时候报了这个一个异常。

In a strange shop there are n types of coins of value A1, A2 ... An. C1, C2, ... Cn denote the number of coins of value A1, A2 ... An respectively. You have t...

Problem Description Roy has just moved into a new apartment. Well, actually the apartment itself is not very new, even dating back to the days before people h...

Problem Description After the 32nd ACM/ICPC regional contest, Wiskey is beginning to prepare for CET-6. He has an English words table and read it every mornin...

Problem Description Do you like playing basketball ? If you are , you may know the NBA Skills Chal

“Waiting for orders we held in the wood, word from the front never came By evening the sound of the gunfire was miles away Ah softly we moved through the sh...

Problem Description A weird clock marked from 0 to 59 has only a minute hand. It won’t move until a special coin is thrown into its box. There are different k...

注意我并有把 open 和 close 翻译成开盘价和收盘价，因为这条数据并不是按日来收集的，而它对应的时间精确到 387 毫秒。

三次握手：为了对每次发送的数据量进行跟踪与协商，确保数据段的发送和接收同步，根据所接收到的数据量而确认数据发送、接收完毕后何时撤消联系，并建立虚连接。...