I backpedaled. "They seemed nice enough to me. I just noticed they keptto themselves. 我改口说道,他们看起来对我来说不错,我只是注意到他们总是独来独往. They're all very attractive," I added, trying to be more complimentary. 他们都很有引人注意.我补充到,尝试表达的更赞美些. "You should see the do…
I parked in front of the first building, which had a small sign over the door reading front office. 我停在第一幢建筑的前面,这幢建筑有一个门,上面有小的标志写着办公室的字. No one else was parked there, so I was sure it was off limits, but I decided I would get directions inside instea…
"You're wrong." His voice was almost inaudible. “你错了.” 他的声音几乎听不见 He looked down, stealing my bottle lid and then spinning it on its side between his fingers. 他低下头,偷走了我的瓶盖并且在指尖旋转着它. I stared at him, wondering why I didn't feel afraid. He meant wh…
Filesystems that manage the storage across a network of machines are called distributed filesystems. Since they are network based, all the complications of network programming kick in, thus making distributed filesystems more complex than regular dis…
Oh, no! You have just completed a lengthy document when you have an unfortu- nate Find/Replace mishap. You have accidentally removed all spaces, punctuation, and capitalization in the document. A sentence like "I reset the computer. It still didn't b…
索引 理解 GROUP BY 过滤数据 vs. 过滤分组 GROUP BY 与 ORDER BY 之不成文的规定 子查询 vs. 联表查询 相关子查询和不相关子查询. 增量构造复杂查询 Always More Than One Solution As explained earlier in this chapter, although the sample code shown here works, it is often not the most efficient way to perf…
思路:重开一个新图,按着邻接列表的顺序从上到下遍历,每遍历一行链表前,清空visited数组,如果没有访问过这个元素,则加入新图,如果已经访问过了(重边),则不动. 伪代码: 复杂度:O(V+E) for each u 属于 Vertex visited[u] = false; for u 属于 Vertex visited[u] = true; for v 属于 Adj[u] if(!visited[v]) Adj1[u].insert(v); visited[v] = true; for v…
14.5. Statements There are many kinds of statements in the Java programming language. Most correspond to statements in the C and C++ languages, but some are unique. As in C and C++, the if statement of the Java programming language suffers from the s…
