2wire 2701

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"Academic article" oj.jzxx.net2701 Tree __.net

Format The output is a total of n rows, and row I represents the height of the tree when node I is the root. Sample Input Sample 1:31 22 3Sample 2:41 42 43 4Sample outputSample 1:323Sample 2:3332 Data range (listen to LZ said): For 100% of the data, 1However I think the range of data: should be 1 (However, this layout is still very ugly) (escapeSource: Oj.jzxx.net (the original LZ did not give a question. _ (: З"∠) _ so went to the OJ. It should be 2701

MongoDB replica set build and increase or decrease machine

": [ { "_id": 0, "name": "mongodb0.example.net:2701", "health": 1, "state": 2, "STATESTR": "Secondary ", " uptime ": 3816405, " Optime ": Timestamp (1408335342, 1), " Optimedate ": Isodate (" 2014-08-18t04 : 15:42z "), " Lastheartbea

MongoDB makes a crud operation of pictures--in combination with Java

Example:Package Com.zd.mongodb.common;import Java.io.file;import Java.io.ioexception;import java.net.UnknownHostException; Import Com.mongodb.db;import com.mongodb.dbcollection;import Com.mongodb.dbobject;import Com.mongodb.Mongo;import Com.mongodb.gridfs.gridfs;import Com.mongodb.gridfs.gridfsdbfile;import Com.mongodb.gridfs.GridFSInputFile; public class Mongodbcommon {//Connection Mongodbpublic DB mongodbconnection () {Mongo m = null;try {m = new Mongo ("localhost",

Linux Learning-linux File special permissions and additional permissions

] ~]# chmod u-x/bin/netstat[Email protected] ~]# Ll/bin/netstat-rwsr-xr-x 1 root root 128216 Mar 2017/bin/netstat2. Special Permission SgidRole: As with suid, just Sgid is the right to get the user group that the program belongs toExample: Locate find File principle: Store all file names in the system in a database and set up an indexSo it's a lot quicker to find locate than find.UpdateDB Update commands for locate command database content[Email protected] ~]# chmod g+s/usr/bin/locate[Email prot

Security Detection and reinforcement policies based on the Solaris Xeon 5.8/5.9 System [II]

with Electronic Communications PrivacyAct of 1986 (18 USC 2701-2711), use it with caution!* Msgsnscarf: records from AOL Instant Messenger, ICQ 2000, IRC, and Yahoo! The information sniffed in the Messenger chat sessions.* Sshmitm: an SSH man-in-the-middle attack.* Tcpkill: Kill the specified TCP connection.* Tcpnice: Slow down the specified TCP connection (Sepuede usar para evitar virus/gusanos tipo NIMDA ).Mirar: http://bulmalug.net/body.phtml? NId

Use Node. js + Mongodb to build a CloudFoundry-based project

URL );Create a Schame and a model: Var Schema = db. Schema,ObjectId = Schema. ObjectId;Var testSchema = new Schema ({Host: String,Dbs: String,Time: Date});Binding model: Var TestModule = db. model ('test-cloudfoundry ', testSchema );Note: test-cloudfoundry is the Collection name (Collection is equivalent to the SQL Table concept) Save data to Collection: Var test = new TestModule ();Test. host = mongo. hostname;Test. dbs = mongo. db;Test. time = new Date ();Test. save (function (err ){If (! Err

Didi kuaidi Smart Travel platform (cangqiong) SQL Injection Vulnerability

Didi kuaidi Smart Travel platform (cangqiong) SQL Injection Vulnerability The web interface of Didi kuaidi Smart Travel platform has the SQL injection vulnerability. Didi fast intelligent travel platform data interface has obvious SQL injection vulnerability, such as address: http://v.kuaidadi.com/point? CityId = 1101001 scope = city date = 0 dimension = distrision num = 300 is the system's distribution statistics for Beijing.Normally, the result is: Vcm1hbC5qcGc = "onerror =" javascript:

Springboot integrated JSP (with source code) + encountered pits

) ~[ Spring-core-4.3.2.release.jar:4.3.2.release] At Org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass ( configurationclassparser.java:301) ~[spring-context-4.3.2.release.jar:4.3.2.release] at Org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass ( configurationclassparser.java:237) ~[spring-context-4.3.2.release.jar:4.3.2.release] at Org.springframework.context.annotation.ConfigurationClassParser.parse (configurationc

Hangdian ACM topic category

, 2143, 2148, 2153, 2156, 2161, 2162, 2164, 2178, 2186, 2192, 2200, 2201, 2212, 2304, 2309, 2317, 2401, 2500, 2502, 2503, 2504, 2519, 2520, 2521, 2523, 2524, 2535, 2537, 2539, 2547, 2548, 2549, 2550, 2551, 2552, 2555, 2560, 2561, 2562, 2566, 2567, 2568, 2700, 2710 dynamic planning: 1003, 1024, 1029, 1069, 1074, 1087, 1114, 1159, 1160, 1171, 1176, 1203, 1231, 1257, 1260, 1284, 1421, 1789, 1978, 2059, 2084, 2159, 2191, 2544, 2571, 2602, 2709, search: 1010, 1015, 1016, 1026, 1072, 1075, 1175, 1180,

Some questions in HDU are classified

, 2084, 2159, 2191, 2544, 2571, 2602, 2709, Search: 1010, 1015, 1016, 1026, 1072, 1075, 1175, 1180, 1181, 1238, 1239, 1240, 1241, 1242, 1253, 1254, 1312, 1372, 1548, 1597, 1671, 1677, 1728, 1800, 1983, 2102, 2141, 2553, 2563, 2605, 2612, 2614, 1616 Greedy: 1009, 1045, 1049, 1050, 1051, 1052, 1257, 1800, 2037, 2111, 2124, 2187 Mathematical questions: 1018, 1065, 1071, 1115, 1141, 1162, 1212, 1220, 1492, 1593, 1701, 1722, 1798, 1840, 1999, 2036, 2080, 2086, 2089, 2105, 2108, 2134, 2303, 2393, 2438

Go get started-the complex type in Go

Main content from the Chinese version of the official tutorial Go language TourObjective to summarize the main pointsPointerGo has pointers. The pointer holds the memory address of the value.*Ta type is a T pointer to a type value. Its 0 value is nil .var p *intoperator generates a pointer to its operand.i := 42p = i*The operator represents the underlying value that the pointer points to.fmt.Println(*p) // 通过指针 p 读取 i*p = 21 // 通过指针 p 设置 iThis is often referred to as an "indirect referen

Hduoj topic Categories

, 2156, 2161, 2162, 2164, 2178, 2186, 2192, 2200, 2201, 2212, 2304, 2309, 2317, 2401, 2500, 2502, 2503, 2504, 2519, 2520, 2521, 2523, 2524, 2535, 2537, 2539, 2547, 2548, 2549, 2550, 2551, 2552, 2555, 2560, 2561, 2562, 2566, 2567, 2568, 2700, 2710, dp:1003, 10240, 1029, 1069, 1074, 1087, 1114, 1159, 1160, 1171, 1176, 1203, 1231, 1257, 1260, 1284, 1421, 1789, 1978, 2059, 2084, 2159, 2191, 2544, 2571, 2602, 2709,Search: 1010, 1015, 1016, 1026, 1072, 1075, 1175, 1180, 1181, 1238, 1239, 1240, 1241, 1

OPatch reports Prerequisite check & quot; CheckActiveFilesAndExecutables & quot; failed, opatch

: oracle.opatch.OPatchSession.main(OPatchSession.java:2343)[Oct 9, 2014 5:06:20 AM] StackTrace: oracle.opatch.OPatch.main(OPatch.java:614) Problem Analysis: We can see from the preceding log that a file is running. For details, see Metalink: 148501.1; Solution: 1. Check the Oracle process: [oracle@db01 18522509]$ ps -ef|grep oraoracle 2643 1 0 Oct08 ? 00:00:06 /DBSoft/Product/11.2.4/db_1/bin/tnslsnr LISTENER -inheritoracle 2673 1 0 Oct08 ? 00:00:00 ora_pmon_woooracle 2675 1 0 Oct08 ? 00:0

SPAW editor. Net edition V.2 misuse

There are many HTML editors, such as FCKeditor, which have their own advantages and disadvantages. It is hard to compare them when they are actually used. Some time ago, I saw someone recommending SPAW editor, so I downloaded a trial at SourceForge. This editor is quite distinctive, such as floating and supporting multiple editing areas and better file managers (uploading and managing files. However, the reason is ". net edition "was launched only after the editor was first used by PHP developer

PHP Upload class implementation single and batch upload _ PHP Tutorial-php Tutorial

network programming language. PHP Upload code: php /** *@packagemyFrameworkuploadclass *@Descriptionuploadclass *@Date2007-11-28 *@authorantsnet *@copyrighthttp://www.antsnet.net *@Emailantsnet@163.com *@Environment:Apache2.0.59+PHP5.2.5+mysql5.0 *@version$Id:myFrame_Upload.php22008-02-2701:14:05ZAdministrator$ */ classmyFrame_UploadextendsmyFrame { var$uploadPath="uploadFile/"; var$f

HD Topic Categories

, 2137, 2138, 2139, 2143, 2148, 2153, 2156, 2161, 2162, 2164, 2178, 2186, 2192, 2200, 2201, 2212, 2304, 2309, 2317, 2401, 2500, 2502, 2503, 2504, 2519, 2520, 2521, 2523, 2524, 2535, 2537, 2539, 2547, 2548, 2549, 2550, 2551, 2552, 2555, 2560, 2561, 2562, 2566, 2567, 2568, 2700, 2710, dp:1003, 1024, 1029, 1069, 1074, 1087, 1114, 1159, 1160, 1171, 1176, 1203, 1231, 1257, 1260, 1284, 1421, 1789, 1978, 2059, 2084, 2159, 2191, 2544, 2571, 2602, 2709,Search: 1010, 1015, 1016, 1026, 1072, 1075, 1175, 11

Nginx Start stop

View Nginx process ps-ef|grep nginxIf it is on, it will appear similar to the followingRoot 2700 1 0 09:35? 00:00:00 Nginx:master Process Nginx-c/etc/nginx/nginx.confNginx 2701 2700 0 09:35? 00:00:00 Nginx:worker ProcessIf it's not turned on/usr/local/nginx-1.8.0/sbin/nginx-c/usr/local/nginx-1.8.0/conf/nginx.confSpecify the configuration file with-C or do not specify/usr/local/nginx-1.8.0/sbin/nginx-t-c/usr/local/nginx-1.8.0/conf/nginx.conf-T to test

Hangzhou Electric OJ Classification

,2156, 2161, 2162, 2164, 2178, 2186, 2192, 2200, 2201, 2212, 2304, 2309, 2317, 2401 ,2500, 2502, 2503, 2504, 2519, 2520, 2521, 2523, 2524, 2535, 2537, 2539, 2547, 2548 ,2549, 2550, 2551, 2552, 2555, 2560, 2561, 2562, 2566, 2567, 2568, 2700, 2710 ,Dynamic Planning:1003, 1024, 1029, 1069, 1074, 1087, 1114, 1159, 1160, 1171 (Dynamic programming 1), 1176, 1203,1231, 1257, 1260, 1284, 1421, 1789, 1978, 2059, 2084, 2159, 2191, 2544, 2571, 2602,2709.Search:1010, 1015, 1016, 1026, 1072, 1075, 1175, 118

Hdu--pku topic Categories

, 2135, 2136, 2137, 2138, 2139, 2143, 2148, 2153, 2156, 2161, 2162, 2164, 2178, 2186, 2192, 2200, 2201, 2212, 2304, 2309, 2317, 2401, 2500, 2502, 2503, 2504, 2519, 2520, 2521, 2523, 2524, 2535, 2537, 2539, 2547, 2548, 2549, 2550, 2551, 2552, 2555, 2560, 2561, 2562, 2566, 2567, 2568, 2700, 2710, dp:1003, 1024, 1029, 1069, 1074, 1087, 1114, 1159, 1160, 1171, 1176, 1203, 1231, 1257, 1260, 1284, 1421, 1789, 1978, 2059, 2084, 2159, 2191, 2544, 2571, 2602, 2709,Search: 1010, 1015, 1016, 1026, 1072, 10

HDOJ ACM TOPIC Categories

, 2136, 2137, 2138, 2139, 2143, 2148, 2153, 2156, 2161, 2162, 2164, 2178, 2186, 2192, 2200, 2201, 2212, 2304, 2309, 2317, 2401, 2500, 2502, 2503, 2504, 2519, 2520, 2521, 2523, 2524, 2535, 2537, 2539, 2547, 2548, 2549, 2550, 2551, 2552, 2555, 2560, 2561, 2562, 2566, 2567, 2568, 2700, 2710, dp:1003, 1024, 1029, 1069, 1074, 1087, 1114, 1159, 1160, 1171, 1176, 1203, 1231, 1257, 1260, 1284, 1421, 1789, 1978, 2059, 2084, 2159, 2191, 2544, 2571, 2602, 2709,Search: 1010, 1015, 1016, 1026, 1072, 1075, 11

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