5 0 practice exam

Problem from http://q.cnblogs.com/q/38789/ The questions are as follows: Recently, I was developing a project to create a test system, which has a test paper function (random question extraction). The test attributes include: Major, question type, difficulty, and cognitive level. Now we need to create a random exam and extract 100 questions to meet the following conditions: Condition 1: Major: Internal Medicine 20% surgery 30% Stomatology 25% neur

where E1.mgr =E2.empno (+);Find two jobs with the highest average wage, grouped by positionSELECT * FROM (select AVG (SAL) from emp order BY job desc) where rownumselect= "D.dname=" "from=" "emp=" "dept=" "d=" "where=" "and=" "E.sal=" "> (selectMax (SAL) fromEMP where deptno=20) and E.deptno=d.deptnoJob categories with average wage greater than 20002018/5/31 Oracle Database interview Written questions summaryHttp://www.yjbys.com/qiuzhizhinan/show-308

Source: http://cs101.openjudge.cn/practice/12556/ 12556: encoded string Total time limit: 1000ms memory limit: 65536kB Description In data compression, a common method is the stroke length encoding compression. For a string to be compressed, we can sequentially record each character and the number of repetitions. For example, the string to be compressed is "AAABBBBCBB", and the compression result is (a,3) (b,4) (c,1) (b,2). This compression is effecti

#importintMainintargcConst Char*argv[]) {@autoreleasepool {/** * Question 1th Please store the following data in a dictionary and output the dictionary content as a string output: "xxx, age xxx, professional xxx" (replace XXX with the corresponding data). */NSString*name =@"Wang Chongyang"; Nsinteger Age= About; NSString*job =@"Tao Long"; Nsdictionary*[email protected]{@"name": Name,@" Age": @ (age),@"Job": Job}; Nsmutablestring*str=[[nsmutablestring Alloc]initwithformat:@"%@, aged%@, profession

Chapter 5 Project Practice-fixed PC deployment [5], practice-pc Learning points: 1. Bottom Area 2. Description Area 3. Copyright and document Area Lecturer: Li Yanhui This chapter describes how to use HTML5 and CSS3 to build Web pages. The first project is implemented with a fixed PC layout. I. Bottom Area In this le

0 Basic examinee How to practice TOEFL listening? In the TOEFL test preparation process, 0 of the basic students will encounter more difficulties. I do not know from where to learn, always not enough to learn to spend always distracted, not long will be sleepy. Sometimes hearing problems have started and they have not yet responded to entering the listening model

specify the runner/var/spool/cron/usernameRecommended crontab CommandJob1. Every Monday to Saturday 3:20 A.M., run the CP command to save the/etc/directory, storage location is/backups/etc-yyyy-mm-dd;3 * * 1-6/bin/cp-rfp/etc//backups/etc-' Date +\%y\%m\%d '2. Every Sunday 2:30 A.M., run the CP command to back up the/etc/fstab file with a storage location of/backup/fstab-yyyy-mm-dd-hh-mm-ss2 * * 7/bin/cp-rfp/etc/fstab/backups/fstab-' date +\%y\%m\%d\%h\%m\%s '3. Every Monday to Saturday 3:20 A.M

This record uses pure Java code to build the practice of SPRINGMVC Engineering, just a demo. Before you start, warm up and give the SPRINGMVC call flowchart, which explains the process of an HTTP request request reaching the SPRINGMVC framework, as follows:Starting with Servlet 3.0, the class implementing the Javax.servlet.ServletContainerInitializer interface executes the Onstartup method when the container is started. SPRINGMVC's "

over, in order to deepen understanding and memoryIf you have a foundation, you can choose chapters to learn according to your needs.2.3. Instructor Recommendations1. Be sure to follow the course to practice, think more, and work more together on the scene.2. It is a very good learning habit to watch videos and make some records and notes on the side.3. Be sure not to rely too much on video, to learn to read the API and use Baidu, learn to think, lear

; Fastcgi_param Script_filename/usr/share/nginx/Yeliangcheng.com$fastcgi_script_name; Include Fastcgi_params; }}serverc{#迁移程序--Install the same package PHP PHP-mysql/mnt/item/nginx/epel/spawn-fcgi-1.6.3-5. el7.x86_64.rpm #启动服务并设置开机自启 systemctl start Spawn-fcgi; /sbin/chkconfig spawn-fcgi on #php相关文件Tar-jxf/usr/share/nginx/bbs.com/bbs.Tar. bz2}===================================================================================#测试server

1102:0 start-up algorithm 09--continue practicing simple input and calculation (A-B) time limit:1 Sec Memory limit:520 MB 64bit IO Format:%lldsubmitted:2810 accepted:2161[Submit] [Status] [Web Board] DescriptionEasy, no more talking.InputEnter 2 integers a, b, separated by a spaceOutputOutput A-B valueSample Input10 5Sample Output5Source0 Starting point Learning algorithm 1 2 int 34 int a,b,c; 5