Crash and Go(relians) 怎么实现的

Problem Description The Gorelians are a warlike race that travel the universe conquering new worlds as a form of recreation. Generally, their space battles are fairly one-sided, but occasionally even the Gorelians get the worst of an encounter. During one such losing battle, the Gorelians’ space ship became so damaged that the Gorelians had to evacuate to the planet below. Because of the chaos (and because escape pods are not very accurate) the Gorelians were scattered across a large area of the planet (yet a small enough area that we can model the relevant planetary surface as planar, not spherical). Your job is to track their efforts to regroup. Fortunately, each escape pod was equipped with a locator that can tell the Gorelian his current coordinates on the planet, as well as with a radio that can be used to communicate with other Gorelians. Unfortunately, the range on the radios is fairly limited according to how much power one has. When a Gorelian lands on the alien planet, the first thing he does is check the radio to see if he can communicate with any other Gorelians. If he can, then he arranges a meeting point with them, and then they converge on that point. Once together, they are able to combine the power sources from their radios, which gives them a larger radio range. They then repeat the process—see who they can reach, arrange a meeting point, combine their radios—until they finally cannot contact any more Gorelians. Gorelian technology allows two-way communication as long as at least one of them has a radio with enough range to cover the distance between them. For example, suppose Alice has a radio with a range of 40 km, and Bob has a range of 30 km, but they are 45 km apart (Figure 1). Since neither has a radio with enough range to reach the other, they cannot talk. However, suppose they were only 35 km apart (Figure 2). Bob’s radio still does not have enough range to reach Alice, but that does not matter—they can still talk because Alice’s radio has enough range to reach Bob. If a Gorelian successfully contacts other Gorelians, they will meet at the point that is the average of all their locations. In the case of Alice and Bob, this would simply be the midpoint of A and B (Figure 3). Note that the Gorelians turn off their radios while traveling; they will not attempt to communicate with anyone else until they have all gathered at the meeting point. Once the Gorelians meet, they combine their radios to make a new radio with a larger range. In particular, the area covered by the new radio is equal to the sum of the areas covered by the old radio. In our example, Alice had a range of 40 km, so her radio covered an area of 1600π km. Bob’s radio covered an area of 900π km. So when they combine their radios they can cover 2500π km—meaning they have a range of 50 km. At this point they will try again to contact other Gorelians. This process continues until no more Gorelians can be contacted. As an example, suppose the following Gorelians have all landed and all have a radio range of 30 km: Alice (100, 100), Bob (130, 80), Cathy (80, 60), and Dave (120, 150). At this point, none of the Gorelians can contact anyone else (Figure 5). Now Eddy lands at position (90, 80) (Figure 6). Eddy can contact Alice and Cathy, so they arrange to meet at (90, 80), which is the average of their locations. Combining their radios gives them a range of √2700 ≈ 51.96 km (Figure 7). Now they check again with their new improved range and find that they can reach Bob. So they meet Bob at (110, 80) and combine their radios to get a new radio with a range of 60 (Figure 8). Unfortunately, this is not far enough to be able to reach Dave, so Dave remains isolated. Input The input will consist of one or more data sets. Each data set will begin with an integer N representing the number of Gorelians for this dataset (1 ≤ N ≤ 100). A value of N = 0 will signify the end of the input. Next will come N lines each containing three integers X, Y, and R representing the x- and y-coordinate where the Gorelian lands and the range of the radio (0 ≤ X ≤ 1000, 0 ≤ Y ≤ 1000, and 1 ≤ R ≤ 1000). Note that only the Gorelians' initial coordinates/range will be integral; after merging with other Gorelians they may no longer be integral. You should use double-precision arithmetic for all computations. The Gorelians land in the order in which they appear in the input file. When a Gorelian lands, he merges with any Gorelians he can contact, and the process keeps repeating until no further merges can be made. The next Gorelian does not land until all previous merges have been completed. Output The output will be one line per data set, reporting the number of independent groups of Gorelians that remain at the end of the process. Sample Input 5 100 100 30 130 80 30 80 60 30 120 150 30 90 80 30 6 100 100 50 145 125 10 60 140 15 160 145 20 130 135 25 80 80 30 0 Sample Output 2 3

matlab拿别人的程序跑时出现Attempt to reference field of non-structure array.

最近在做一个手写数字的程序，拿了别人的程序跑时发现在鼠标左键写完字后会点击右键会出现如下错误： >> MouseDraw MouseDraw right button down! Attempt to reference field of non-structure array. Error in MouseDraw (line 56) axes(FigHandle.Children),cla;%删除坐标图像 Error while evaluating figure WindowButtonDownFcn 源代码如下，请各位大神帮忙看看谢谢！ function MouseDraw(action) %以Handle Graphics来设定滑鼠事件 %鼠标左键按下不放进行写字，右键进行识别 %(MouseDraw Events)的反应指令(Callbacks) % global不能传矩阵 %global用于定义全局变量，定义之后全局变量可作用于其他函数 global InitialX InitialY FigHandle %定义了三个变量 imSizex = 90; %定义图片的长度 imSizey = 120; %定义图片的宽度 %如果函数没有输入值的话，把action定义为start if nargin == 0 action = 'start'; end %进行判断actio是什么 switch(action) %%开启图形视窗 case 'start', FigHandle = figure('WindowButtonDownFcn','MouseDraw down');%figure函数用于新建一个窗口，此处获得它的句柄，第一个参数是在figure中点击时的回调函数 set(FigHandle,'position',[200,200,360,410] ); %设定图窗大小来适应识别的图片大小，设置的是中心坐标为200，横竖长度分别为360和410（或是各边离框的距离） %set(gca,'position',[0.1,0.1,0.5,0.8] ); %定 axis([1 imSizex 1 imSizey]); % 设定图轴范围 grid on; %添加网格线 box on; % 将图轴加上图框 title('手写体输入窗(左键写字 右键识别)'); dlmwrite('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IXT1.txt', -10, 'delimiter', '\t', 'precision', 6); dlmwrite('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IYT1.txt', -10, 'delimiter', '\t', 'precision', 6); %%滑鼠按钮被按下时的反应指令 case 'down', if strcmp(get(FigHandle, 'SelectionType'), 'normal') %如果是左键 set(FigHandle,'pointer','hand'); CurPiont = get(gca, 'CurrentPoint'); InitialX = CurPiont(1,1);%得到该点的两个数据并写入 InitialY = CurPiont(1,2); dlmwrite('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IXT1.txt', InitialX, '-append', 'delimiter', '\t', 'precision', 6); dlmwrite('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IYT1.txt', InitialY, '-append', 'delimiter', '\t', 'precision', 6); set(gcf, 'WindowButtonMotionFcn', 'MouseDraw move');%保存完数据后进行的某种设置 set(gcf, 'WindowButtonUpFcn', 'MouseDraw up');%按下后是起还是 elseif strcmp(get(FigHandle, 'SelectionType'), 'alt') % 如果是右键 set(FigHandle, 'Pointer', 'arrow'); set( FigHandle, 'WindowButtonMotionFcn', '') set(FigHandle, 'WindowButtonUpFcn', '') fprintf('MouseDraw right button down!\n'); ImageX = importdata('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IXT1.txt'); ImageY = importdata('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IYT1.txt'); InputImage = ones(imSizex,imSizey); roundX = round(ImageX); roundY = round(ImageY); for k = 1:size(ImageX,1) if 0<roundX(k) && roundX(k)<imSizex && 0<roundY(k) && roundY(k)<imSizey InputImage(roundX(k)-1:roundX(k)+2, roundY(k)-1:roundY(k)+2) = 0; end end InputImage = imrotate(InputImage,90); % 图像旋转90 axes(FigHandle.Children),cla;%删除坐标图像 delete('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IXT1.txt');%每次识别完要先删除，否则是根据上面的'-append'写入 delete('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IYT1.txt'); bayesBinaryTest(InputImage); %调用手写体识别函数 imwrite(InputImage,'C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\图片.bmp'); end %%滑鼠移动时的反应指令 case 'move', CurPiont = get(gca, 'CurrentPoint'); X = CurPiont(1,1); Y = CurPiont(1,2); % 当鼠标移动较快时，不会出现离散点。 % 利用y=kx+b直线方程实现。 x_gap = 0.1; % 定义x方向增量 y_gap = 0.1; % 定义y方向增量 if X > InitialX step_x = x_gap; else step_x = -x_gap; end if Y > InitialY step_y = y_gap; else step_y = -y_gap; end % 定义x,y的变化范围和步长 if abs(X-InitialX) < 0.01 % 线平行于y轴，即斜率不存在时 iy = InitialY:step_y:Y; ix = X.*ones(1,size(iy,2)); else ix = InitialX:step_x:X ; % 定义x的变化范围和步长 % 当斜率存在，即k = (Y-InitialY)/(X-InitialX) ~= 0 iy = (Y-InitialY)/(X-InitialX).*(ix-InitialX)+InitialY; end ImageX = [ix, X]; ImageY = cat(2, iy, Y); line(ImageX,ImageY, 'marker', '.', 'markerSize',18, ... 'LineStyle', '-', 'LineWidth', 2, 'Color', 'Black'); dlmwrite('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IXT1.txt', ImageX, '-append', 'delimiter', '\t', 'precision', 6); dlmwrite('C:\Users\Administrator\Desktop\贝叶斯手写汉字识别\程序\IYT1.txt', ImageY, '-append', 'delimiter', '\t', 'precision', 6); InitialX = X; %记住当前点坐标 InitialY = Y; %记住当前点坐标 %%滑鼠按钮被释放时的反应指令 case 'up', % 清除滑鼠移动时的反应指令 set(gcf, 'WindowButtonMotionFcn', ''); % 清除滑鼠按钮被释放时的反应指令 set(gcf, 'WindowButtonUpFcn', ''); end

java tomcat dubbo服务关闭失败

25-Dec-2019 13:10:35.326 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance. 25-Dec-2019 13:10:35.328 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8050"] 25-Dec-2019 13:10:35.332 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8059"] 25-Dec-2019 13:10:35.333 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service [Catalina] 25-Dec-2019 13:10:35.384 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [DubboRegistryFailedRetryTimer-thread-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078) java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093) java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809) java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 25-Dec-2019 13:10:45.373 INFO [localhost-startStop-1-SendThread(172.30.1.172:2181)] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [ch.qos.logback.core.status.WarnStatus]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access. java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [ch.qos.logback.core.status.WarnStatus]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access. at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1328) at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1316) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1175) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1136) at ch.qos.logback.classic.LoggerContext.noAppenderDefinedWarning(LoggerContext.java:186) at ch.qos.logback.classic.Logger.callAppenders(Logger.java:264) at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421) at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383) at ch.qos.logback.classic.Logger.debug(Logger.java:482) at org.apache.zookeeper.ClientCnxn$SendThread.readResponse(ClientCnxn.java:742) at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:94) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:366) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141) 25-Dec-2019 13:10:45.377 INFO [localhost-startStop-1-SendThread(172.30.1.172:2181)] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [ch.qos.logback.classic.spi.ThrowableProxy]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access. java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [ch.qos.logback.classic.spi.ThrowableProxy]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access. at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1328) at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1316) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1175) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1136) at ch.qos.logback.classic.spi.LoggingEvent.<init>(LoggingEvent.java:119) at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:419) at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383) at ch.qos.logback.classic.Logger.warn(Logger.java:692) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1162)

Getting Driving License 程序的设计问题

Problem Description Have you got a driving license? Acquiring a driving license brings you a lot of benefits. You will regret for not passing the driving test or getting a driving license in your campus life. Why?College life is filled with much spare time,which you can use to improve yourself in many fields such as driving. During the time of taking driving lessons,Samuel met a lot of classmates whose time are occupied by their own work. The fact that they have little time to practice makes getting driving license increasingly difficult. Passing the driving test as soon as possible is suggested by these mates to the our college students who cannot drive. Know something about the driving test you can read the information in the background section,however,it is not related with this problem firmly. Surely,you can go to the problem section directly. Here is the background information on owning driving licenses in China mainland: To get a driving license successfully,you need to take about 4 tests at least. The first part is the theory exam which helps you know clearly about the transportation law in China mainland and other driving theory. The second is to test you whether you can drive a car forward out and backward in the garage at a very low speed(like aunts moving),move the car from one garage to another and drive out. The third section you need to pass is a little difficult than the second test. In this section,you should be able to drive to avoid the obstacles on the road,manage your car pass S formed way(your car's wheels can not be moved onto one of the tracks which leads your way out),after that you may have to make your car pass the 90 degree angle track,then pass the course equipped with very low bridge using one side of your car's wheel and so on. The forth part which is test the same day with the third test is called road driving test(but in the problem I designed the time between Part 3 and Part 4 is 1 month,just want to make the problem much easier).As you can refer from the word,it tests the ability of driving on the road,it is more practical and of more importance. If you seems not very lucky,you will have fifth section(The problem does not include the 5th part,you can ignore it in solving the problem).In this part you are required to driving at night which involves changing lights in addition . Teachers never taught how to drive at night unless your group is asked to take part in this test. But on the contrary,taught how to driving at night,of course,is necessary. Samuel had an experience of taking the fifth test to get the driving license in the summer of 2008. Tell you a secret,next time you meet a car comes from an opposite direction and the driver of that car does not change his front lights ,it probably means he/she needs special training on how to drive at night. To get a driving license,you should pass the 4 parts one by one. For example,if you failed in the section 2,you have to retry for a second time,third time...before you pass. After that you have the opportunity to enter Part 3. Here is the problem section you need read patiently: Some details you need to know: 1.The time between the two tests is generally about 1 month(If you fail in the test on your first attempt,you can try it a second time. Fail again the second time he have to go home and retry after 1 month). 2.And the time from you take the first test to your owning a license is within 2 years. 3.What's more,the passing score in Part 1 test is 90(that is to say if you get 89 or even lower at your first attempt,a second attempt is needed. You will pass until you get 90 or higher at the second time)and each of the rest parts the passing score is 80 at least. Input The input consists 2 major sections as usual, the test cases t,each of the test case involves an integer n and n scores one gets in the test and with n scores he passed the test or he failed to pass in the 2 years(of course here n>=4). All the number here are integers. Output Output is simple. Just output the time one needs to get a driving license (if time is within 2 years)using the format “It takes about m months to get a driving license.”If time is beyond 2 years please output the sentence “He failed to get a driving license within 2 years! ” Sample Input 3 5 89 90 95 84 80 7 80 90 70 80 75 85 80 7 80 90 70 70 80 85 85 Sample Output It takes about 3 months to get a driving license. It takes about 3 months to get a driving license. It takes about 4 months to get a driving license.

第一次数据库查询成功，第二次查询去失败了？

我编写一个Android应用，A页面拥有一个选项菜单，点击菜单中的选项，跳转到B页面，B页面接收从A页面传递的数据后，进行数据库查询，在本页面中显示相关内容。 B页面中通过动态添加View的方法，添加了按钮，点击按钮，可进行数据库查询，获取相关值在页面显示。 不过我不想每次返回A页面，选择选项菜单的另一项再进入B页面，于是我在B页面同样放置了选项菜单，让我点击B页面上的选项菜单时，直接在B页面上显示，不过却出现“java.lang.NullPointerException: Attempt to invoke virtual method 'android.database.Cursor android.database.sqlite.SQLiteDatabase.rawQuery(java.lang.String, java.lang.String[])' on a null object reference”的错误。 请问，要怎样做呢？ 相关数据库查询的函数 public ArrayList<JapInfo> query_stylecolumn(String style_column, String alp_style) { String sql = String.format("SELECT hiragana,katakana,sound_path FROM Jap_Info AS j " + "LEFT JOIN Alp_style AS a " + "ON j.alpha_style_id = a.id " + "WHERE j.style_column = '%s' and a.style_name = '%s';",style_column,alp_style); ArrayList<JapInfo> japIf = new ArrayList<JapInfo>(); Cursor cursor = mDB.rawQuery(sql,null); while (cursor.moveToNext()){ JapInfo japIfo = new JapInfo(); japIfo.hiragana = cursor.getString(0); japIfo.katakana = cursor.getString(1); japIfo.sound_path = cursor.getString(2); japIf.add(japIfo); } cursor.close(); return japIf; }

MySQL为何无法读取数据？

代码如下 ``` MySqlDataReader reader = cmd.ExecuteReader(); reader.Read(); Console.WriteLine(reader[0].ToString()); ``` 结果提示我这个: ``` Invalid attempt to access a field before calling Read() ``` 我的表也设置好了  求大佬指教！

Carrying Out A Task

Problem Description During the process of the military exercise, there is a ship on the sea level .The ship will go to certain place to carry out a task. For every action, the ship has two ways to sail. They are normal sailing and accelerated sailing. The normal speed of the ship is certain, when the ship sails normally, it can only move 1 step to the adjacent normal sea level. The ship can also accelerate. There are 2 kinds of accelerated sailings, one is moving forward d steps (d <= 5) in a straight line, and it must move forward d steps exactly every time it accelerates, The d steps must be on the normal sea level, otherwise, it can not accelerate. The other is accelerating while getting through the undercurrent. There are a lot of undercurrents on the sea, and entering the undercurrent area needs to accelerate when the ship is 1 step to the undercurrent. However, the ship itself will be damaged more or less by the undercurrent, After entering the undercurrent, the speed of the ship will become normal immediately. Every time it accelerates, the ship has to consume a certain B energy, and when it starts up ,it carries certain B energy. While the ship is sailing on the sea, it needs to consume a certain A energy. One unit of distance will consume one unit of A energy, and when the ship starts up, it carries enough A energy. There are many reefs on the sea, and the ship can not get through. Now the ship is required to sail to the certain place, of course, to minimize the damage to the ship itself is a priority because the cost of ships is very expensive. The damage is, of course, the smaller, the better. At the same time, an attempt should be made to control the consumption of A energy to the smallest amount during the whole process because the cost of A energy is much more expensive than that of B energy, and you can use B energy which the ship carried when it started up as you wish. Now the question is to work out the minimal times of action from the departure point to the destination under the condition that to minimize the damage to the ship is a priority and then the consumption of A energy to the smallest degree. Input The input file contains several test cases, the first line contains an integer T, indicates the number of test cases. In each case the first line includes two integers n, m (5 <= n, m <= 20), which indicate the size of the sea level for military exercises, and n rows and m columns are the current state of the sea level ('S' indicates the ship's initial position, 'E' indicates the destination place, '#' indicates the reefs, '*' indicates the undercurrent , ' ' the normal sea level), followed a line with a number d in it, it indicates the distance of the first kind of acceleration, then another line includes two integers, indicate that the initial value of the B energy and the value of the B energy needed while accelerating every time. Output Output an integer to indicate the smallest times of action, and if can not reach the task place, then output "can not reach!" Sample Input 2 5 10 ########## #E # #*###### # #S # ########## 5 10 2 6 10 ########## #E # #*######*# #*######*# #S # ########## 5 3 2 Sample Output 8 can not reach!

Roll-call in Woop Woop High

Problem Description The new principal of Woop Woop High is not satisfied with her pupils performance.She introduced a new roll-call process to get a daily measure of the pupils' learning, which proceeds as follows:At the beginning of the daily roll-call period each pupil is handed a question, which they must attempt to answer, before proceeding to their classes. A pupil stops after the question is answered correctly. Each pupil is allowed up to five attempts to answer the question correctly. Pupils who answer correctly on the first attempt are marked present. Pupils who answer correctly after more than one attempt are encouraged to work at home. Pupils who fail to develop a correct answer within five attempts are given remedial classes after school. Pupils who do not give any answer are marked as abscent. Your task is to write a program that reads the pupils' assessments and generates performance reports for the principal to proceed with appropriate actions. Input The input starts with an integer K (1 <= K <= 100) indicating the number of classes. Each class starts with an integer N (1 <= N <= 50) indicating the number of pupils in the class. Each of the following N lines starts with a pupil's name followed by up-to five assessments of his/her answers. An assessment of 'yes' or 'y' indicates a correct answer and an assessment of 'n' or 'no' indicates a wrong answer. A pupil's name consists of a single string with no white spaces. Output The attendance report for each class consists of five lines. The first line consists of the sentence: "Roll-call: X", where X indicates the class number starting with the value of one. The second line consists of the sentence: ''Present: Y1 out of N'', where Y1 is the number of pupils who did not submit a wrong answer. The third line consists of the sentence: ''Needs to study at home: Y2 out of N'', where Y2 is the number of pupils who submitted a number of wrong answers before submitting the correct answer. The fourth line consists of the sentence: ''Needs remedial work after school: Y3 out of N'', where Y3 indicates the number of pupils whose submitted five wrong answers. The fifth line consists of the sentence: ''Absent: Y4 out of N'', where Y4 indicates the number of absent pupils. Sample Input 2 5 Doc n y sneezy n n no yes princecharming no n no no n goofy yes grumpy n y 5 evilemperor n y princesslia r2d2 no no y obeyonecanopy n no y darthvedar y Sample Output Roll-call: 1 Present: 1 out of 5 Needs to study at home: 3 out of 5 Needs remedial work after school: 1 out of 5 Absent: 0 out of 5 Roll-call: 2 Present: 1 out of 5 Needs to study at home: 3 out of 5 Needs remedial work after school: 0 out of 5 Absent: 1 out of 5

hive启动之后，查询语句执行特别慢，之后发现日志中zookeeper报错

hive启动之后，输入查询语句如：show databases; 执行特别慢，之后发现日志中zookeeper报错： ``` 2019-12-30T09:51:20,816 INFO [151e439b-e32e-47fb-9535-baa6b617f672 main-SendThread(localhost:2181)] zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) 2019-12-30T09:51:20,817 WARN [151e439b-e32e-47fb-9535-baa6b617f672 main-SendThread(localhost:2181)] zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[?:1.8.0_231] at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) ~[?:1.8.0_231] at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) ~[zookeeper-3.4.6.jar:3.4.6-1569965] at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) ~[zookeeper-3.4.6.jar:3.4.6-1569965] ``` 求帮助！

Crazy Basketball Fan 问题

Problem Description Alex is a big fan of basketball and he enjoys watching NBA matches. But as he always has classes in the morning when the game is on, he has to read literal living broadcast with his cellphone instead of TV live. The living broadcast gives messages about who scores or who gets the rebound, etc. After watching a few games with his cellphone, Alex finds a problem. After each game, he wants to know the status of the players (score, rebound…) but the system always fails to give. So Alex decides to calculate himself. Can you help him? If one of your teammates is a crazy basketball fan, you should make him solve this problem because he will find it interesting while working on this problem. Input The first line of input contains an integer t (t<=10) indicate the number of cases. In each case, the first line contains the names of the two teams in the form of "A vs B", where A stands for the name of home team and B stands for the name of away team. The following 12 lines contain the name of the players play for the home team and another 12 lines contain the name of the players play for the away team. The first five players of each team will be the starters meaning they are on court when the game starts. All the names only contain letters from 'a' to 'z' and 'A' to 'Z' and ''' without space and the length of each name is no more than 20. All the players' names in one case will be different. Then a line contains an integer n (2<=n<=500) indicates the number of the messages given by the broadcast. The next n lines contain the messages, one message per line. The first line will always contain "Begin" and the last line will always contain "End". The game won't end during a shot or free throw, but may end at any other time. A message in other lines may be one of the following (x, x1 and x2 stand for players from the teams, m and M stand for numbers): Jump Ball x1 vs x2: this message will only be given on the second line right after "Begin". This means two players from different teams are jumping for the ball. This message will always be followed by "x Hold Ball" and x could be anyone. x Hold Ball: this message will be given if the ball is currently in no one's hand, which means: after jump ball or after a shot was made (including the last free throw) or after a shot was blocked or after timeout. x1 Pass to x2: this means the ball is passed from x1 to x2. x1 is deferent from x2 and they are from the same team. Layup/Slam Dunk/Hook Shot/Jump Shot/3pt Shot: the first four messages stand for an attempt for 2-point shot while the last message stand for an attempt for 3-point shot. These messages will only be given when someone is currently holding the ball. These messages may be followed by "Made"/"Missed"/"Blocked by x"/"x Foul". Made/Missed: If a shot was made and scored, "Made" will be given, otherwise "Missed". These two messages will be given right after a shot was attempted if the shot was not fouled or blocked. If the shot was fouled, these two messages will still be given right after "x Foul" to indicate whether the shot was made even with the foul. But if a shot was blocked, these messages will not be given since the shot is definitely missed. x Rebound: If a shot was missed, this message will be given to indicate who get the rebound (could be anyone from both teams). If someone gets the rebound, he holds the ball. Blocked by x: If a shot is blocked, this message will be given right after the message which indicates the shot. This message will always be followed by "x Hold Ball" and x could be anyone. A shot will only be blocked by a player from the opposite team with the shooter. x Foul: this message will be given when a player commit a foul to another player from the opposite team. There are two kind of foul. If this message is given right after the shot attempt, then this foul will lead to free throws. Otherwise this message will be followed by "x Hold Ball". Free Throw m of M: If a shot is fouled, the shooter will make free throws. If the fouled shot is made, then the shooter will only make one free throw. If it's missed and it's a 2-point shot, the shooter will make two free throws. If it's missed and it's a 3-point shot, the shooter will make three free throws. Each made free throw earns one point. In this message, m indicates the number of this free throw (start from 1) and M indicates the number of total free throws this player is going to attempt. Both m and M will be no bigger than 3 and m is no bigger than M. After each free throw there will be a message says "Made" or "Missed" to indicate whether the free throw is made or missed. If the last free throw is missed, just like normal shot, someone will get the rebound and if it's made, a player from the opposite team will hold the ball. No block could be made during the free throws. x Steal: If a player is now holding the ball, a player from the opposite team could steal the ball away. If someone steals the ball, he will hold it. x1 Substitution replaced by x2: this message means x1 is off court and replaced by x2. x1 and x2 are from the same team. This could only happen during timeout or before free throw or after a foul which doesn't lead to free throw. The player who is going to make a free throw won't be replaced. Before free throw means before any "Free Throw m of M" despite of m and M. Timeout: timeout could be called when someone is holding the ball. During timeout, substitution could be made. Timeout is ended with the message "x Hold Ball". It is guaranteed that all the messages are valid and follow the rules. The names of the players will not be the same with words like "rebound" and "block", etc. Actually all the names will be familiar to you if you watch NBA a lot. Output The first output line for each case will be "x1 n1-n2 x2", where x1 and x2 stand for the name of home team and away team and n1 and n2 stand for their total points. Then for each player from each team, calculate the number of his points, rebounds (including offensive and defensive), assists, steals, blocks and fouls. An assist is made when player x1 passes to player x2 and x2 makes a shot (2-pt or 3-pt) and then x1 gets the assist. A rebound is an offensive rebound when the shoot and the player who gets the rebound are from the same team (even the same player); otherwise it's a defensive rebound. Also you have to calculate the number of a player's made field goals (including 2-pt and 3-pt), attempted field goals (including 2-pt and 3-pt), made 3-pt shots, attempted 3-pt shots, made free throws and attempted free throws. Notice: if a shot is fouled and it's missed, it won't be counted as an attempt, but if it's fouled and made, it will be counted as an attempt and a made. The output form is shown in the sample output (PTS - points, OFF - offensive rebound, DEF - defensive rebound, REB - total rebound, AST - assist, STL - steal, BLK - block, PF - personal foul, FGM-A - field goal made and attempted, 3PM-A - 3-pt made and attempted, FTM-A - free throw made and attempted). There are 14 spaces before the word "PLAYER" and exact one space between each column. All the names and numbers are under their column and right alignment. The order of the players is the same with input. Home team first, then comes the away team. If a player didn't play at all (never on court), then you should print "DNP - Coach's Decision" 10 spaces after their names. Print a single line after each case. Sample Input 1 Lakers vs Celtics DerekFisher KobeBryant RonArtest PauGasol AndrewBynum LamarOdom MattBarnes SteveBlake ShannonBrown LukeWalton DerrickCaracter DevinEbanks RajonRondo RayAllen PaulPierce KevinGarnett ShaquilleO'Neal JeffGreen VonWafer GlenDavis JermaineO'Neal TroyMurphy NenadKrstic CarlosArroyo 17 Begin Jump Ball KevinGarnett vs PauGasol KobeBryant Hold Ball KobeBryant Pass to PauGasol Slam Dunk Made RajonRondo Hold Ball RajonRondo Pass to PaulPierce Jump Shot RonArtest Foul Missed Free Throw 1 of 2 Made Free Throw 2 of 2 Missed PauGasol Rebound End Sample Output Lakers 2-1 Celtics Lakers PLAYER PTS OFF DEF REB AST STL BLK PF FGM-A 3PM-A FTM-A DerekFisher 0 0 0 0 0 0 0 0 0-0 0-0 0-0 KobeBryant 0 0 0 0 1 0 0 0 0-0 0-0 0-0 RonArtest 0 0 0 0 0 0 0 1 0-0 0-0 0-0 PauGasol 2 0 1 1 0 0 0 0 1-1 0-0 0-0 AndrewBynum 0 0 0 0 0 0 0 0 0-0 0-0 0-0 LamarOdom DNP - Coach's Decision MattBarnes DNP - Coach's Decision SteveBlake DNP - Coach's Decision ShannonBrown DNP - Coach's Decision LukeWalton DNP - Coach's Decision DerrickCaracter DNP - Coach's Decision DevinEbanks DNP - Coach's Decision Celtics PLAYER PTS OFF DEF REB AST STL BLK PF FGM-A 3PM-A FTM-A RajonRondo 0 0 0 0 0 0 0 0 0-0 0-0 0-0 RayAllen 0 0 0 0 0 0 0 0 0-0 0-0 0-0 PaulPierce 1 0 0 0 0 0 0 0 0-0 0-0 1-2 KevinGarnett 0 0 0 0 0 0 0 0 0-0 0-0 0-0 ShaquilleO'Neal 0 0 0 0 0 0 0 0 0-0 0-0 0-0 JeffGreen DNP - Coach's Decision VonWafer DNP - Coach's Decision GlenDavis DNP - Coach's Decision JermaineO'Neal DNP - Coach's Decision TroyMurphy DNP - Coach's Decision NenadKrstic DNP - Coach's Decision CarlosArroyo DNP - Coach's Decision

Crazy Basketball Fan 具体的实现

Problem Description Alex is a big fan of basketball and he enjoys watching NBA matches. But as he always has classes in the morning when the game is on, he has to read literal living broadcast with his cellphone instead of TV live. The living broadcast gives messages about who scores or who gets the rebound, etc. After watching a few games with his cellphone, Alex finds a problem. After each game, he wants to know the status of the players (score, rebound…) but the system always fails to give. So Alex decides to calculate himself. Can you help him? If one of your teammates is a crazy basketball fan, you should make him solve this problem because he will find it interesting while working on this problem. Input The first line of input contains an integer t (t<=10) indicate the number of cases. In each case, the first line contains the names of the two teams in the form of "A vs B", where A stands for the name of home team and B stands for the name of away team. The following 12 lines contain the name of the players play for the home team and another 12 lines contain the name of the players play for the away team. The first five players of each team will be the starters meaning they are on court when the game starts. All the names only contain letters from 'a' to 'z' and 'A' to 'Z' and ''' without space and the length of each name is no more than 20. All the players' names in one case will be different. Then a line contains an integer n (2<=n<=500) indicates the number of the messages given by the broadcast. The next n lines contain the messages, one message per line. The first line will always contain "Begin" and the last line will always contain "End". The game won't end during a shot or free throw, but may end at any other time. A message in other lines may be one of the following (x, x1 and x2 stand for players from the teams, m and M stand for numbers): Jump Ball x1 vs x2: this message will only be given on the second line right after "Begin". This means two players from different teams are jumping for the ball. This message will always be followed by "x Hold Ball" and x could be anyone. x Hold Ball: this message will be given if the ball is currently in no one's hand, which means: after jump ball or after a shot was made (including the last free throw) or after a shot was blocked or after timeout. x1 Pass to x2: this means the ball is passed from x1 to x2. x1 is deferent from x2 and they are from the same team. Layup/Slam Dunk/Hook Shot/Jump Shot/3pt Shot: the first four messages stand for an attempt for 2-point shot while the last message stand for an attempt for 3-point shot. These messages will only be given when someone is currently holding the ball. These messages may be followed by "Made"/"Missed"/"Blocked by x"/"x Foul". Made/Missed: If a shot was made and scored, "Made" will be given, otherwise "Missed". These two messages will be given right after a shot was attempted if the shot was not fouled or blocked. If the shot was fouled, these two messages will still be given right after "x Foul" to indicate whether the shot was made even with the foul. But if a shot was blocked, these messages will not be given since the shot is definitely missed. x Rebound: If a shot was missed, this message will be given to indicate who get the rebound (could be anyone from both teams). If someone gets the rebound, he holds the ball. Blocked by x: If a shot is blocked, this message will be given right after the message which indicates the shot. This message will always be followed by "x Hold Ball" and x could be anyone. A shot will only be blocked by a player from the opposite team with the shooter. x Foul: this message will be given when a player commit a foul to another player from the opposite team. There are two kind of foul. If this message is given right after the shot attempt, then this foul will lead to free throws. Otherwise this message will be followed by "x Hold Ball". Free Throw m of M: If a shot is fouled, the shooter will make free throws. If the fouled shot is made, then the shooter will only make one free throw. If it's missed and it's a 2-point shot, the shooter will make two free throws. If it's missed and it's a 3-point shot, the shooter will make three free throws. Each made free throw earns one point. In this message, m indicates the number of this free throw (start from 1) and M indicates the number of total free throws this player is going to attempt. Both m and M will be no bigger than 3 and m is no bigger than M. After each free throw there will be a message says "Made" or "Missed" to indicate whether the free throw is made or missed. If the last free throw is missed, just like normal shot, someone will get the rebound and if it's made, a player from the opposite team will hold the ball. No block could be made during the free throws. x Steal: If a player is now holding the ball, a player from the opposite team could steal the ball away. If someone steals the ball, he will hold it. x1 Substitution replaced by x2: this message means x1 is off court and replaced by x2. x1 and x2 are from the same team. This could only happen during timeout or before free throw or after a foul which doesn't lead to free throw. The player who is going to make a free throw won't be replaced. Before free throw means before any "Free Throw m of M" despite of m and M. Timeout: timeout could be called when someone is holding the ball. During timeout, substitution could be made. Timeout is ended with the message "x Hold Ball". It is guaranteed that all the messages are valid and follow the rules. The names of the players will not be the same with words like "rebound" and "block", etc. Actually all the names will be familiar to you if you watch NBA a lot. Output The first output line for each case will be "x1 n1-n2 x2", where x1 and x2 stand for the name of home team and away team and n1 and n2 stand for their total points. Then for each player from each team, calculate the number of his points, rebounds (including offensive and defensive), assists, steals, blocks and fouls. An assist is made when player x1 passes to player x2 and x2 makes a shot (2-pt or 3-pt) and then x1 gets the assist. A rebound is an offensive rebound when the shoot and the player who gets the rebound are from the same team (even the same player); otherwise it's a defensive rebound. Also you have to calculate the number of a player's made field goals (including 2-pt and 3-pt), attempted field goals (including 2-pt and 3-pt), made 3-pt shots, attempted 3-pt shots, made free throws and attempted free throws. Notice: if a shot is fouled and it's missed, it won't be counted as an attempt, but if it's fouled and made, it will be counted as an attempt and a made. The output form is shown in the sample output (PTS - points, OFF - offensive rebound, DEF - defensive rebound, REB - total rebound, AST - assist, STL - steal, BLK - block, PF - personal foul, FGM-A - field goal made and attempted, 3PM-A - 3-pt made and attempted, FTM-A - free throw made and attempted). There are 14 spaces before the word "PLAYER" and exact one space between each column. All the names and numbers are under their column and right alignment. The order of the players is the same with input. Home team first, then comes the away team. If a player didn't play at all (never on court), then you should print "DNP - Coach's Decision" 10 spaces after their names. Print a single line after each case. Sample Input 1 Lakers vs Celtics DerekFisher KobeBryant RonArtest PauGasol AndrewBynum LamarOdom MattBarnes SteveBlake ShannonBrown LukeWalton DerrickCaracter DevinEbanks RajonRondo RayAllen PaulPierce KevinGarnett ShaquilleO'Neal JeffGreen VonWafer GlenDavis JermaineO'Neal TroyMurphy NenadKrstic CarlosArroyo 17 Begin Jump Ball KevinGarnett vs PauGasol KobeBryant Hold Ball KobeBryant Pass to PauGasol Slam Dunk Made RajonRondo Hold Ball RajonRondo Pass to PaulPierce Jump Shot RonArtest Foul Missed Free Throw 1 of 2 Made Free Throw 2 of 2 Missed PauGasol Rebound End Sample Output Lakers 2-1 Celtics Lakers PLAYER PTS OFF DEF REB AST STL BLK PF FGM-A 3PM-A FTM-A DerekFisher 0 0 0 0 0 0 0 0 0-0 0-0 0-0 KobeBryant 0 0 0 0 1 0 0 0 0-0 0-0 0-0 RonArtest 0 0 0 0 0 0 0 1 0-0 0-0 0-0 PauGasol 2 0 1 1 0 0 0 0 1-1 0-0 0-0 AndrewBynum 0 0 0 0 0 0 0 0 0-0 0-0 0-0 LamarOdom DNP - Coach's Decision MattBarnes DNP - Coach's Decision SteveBlake DNP - Coach's Decision ShannonBrown DNP - Coach's Decision LukeWalton DNP - Coach's Decision DerrickCaracter DNP - Coach's Decision DevinEbanks DNP - Coach's Decision Celtics PLAYER PTS OFF DEF REB AST STL BLK PF FGM-A 3PM-A FTM-A RajonRondo 0 0 0 0 0 0 0 0 0-0 0-0 0-0 RayAllen 0 0 0 0 0 0 0 0 0-0 0-0 0-0 PaulPierce 1 0 0 0 0 0 0 0 0-0 0-0 1-2 KevinGarnett 0 0 0 0 0 0 0 0 0-0 0-0 0-0 ShaquilleO'Neal 0 0 0 0 0 0 0 0 0-0 0-0 0-0 JeffGreen DNP - Coach's Decision VonWafer DNP - Coach's Decision GlenDavis DNP - Coach's Decision JermaineO'Neal DNP - Coach's Decision TroyMurphy DNP - Coach's Decision NenadKrstic DNP - Coach's Decision CarlosArroyo DNP - Coach's Decision

The Embarrassed Cryptographer

Problem Description The young and very promising cryptographer Odd Even has implemented the security module of a large system with thousands of users, which is now in use in his company. The cryptographic keys are created from the product of two primes, and are believed to be secure because there is no known method for factoring such a product effectively. What Odd Even did not think of, was that both factors in a key should be large, not just their product. It is now possible that some of the users of the system have weak keys. In a desperate attempt not to be fired, Odd Even secretly goes through all the users keys, to check if they are strong enough. He uses his very poweful Atari, and is especially careful when checking his boss' key. Input The input consists of no more than 20 test cases. Each test case is a line with the integers 4 <= K <= 10100 and 2 <= L <= 106. K is the key itself, a product of two primes. L is the wanted minimum size of the factors in the key. The input set is terminated by a case where K = 0 and L = 0. Output For each number K, if one of its factors are strictly less than the required L, your program should output "BAD p", where p is the smallest factor in K. Otherwise, it should output "GOOD". Cases should be separated by a line-break. Sample Input 143 10 143 20 667 20 667 30 2573 30 2573 40 0 0 Sample Output GOOD BAD 11 GOOD BAD 23 GOOD BAD 31

Flink on yarn 提交任务 文件不存在

Application application_1577461148853_0001 failed 1 times due to AM Container for appattempt_1577461148853_0001_000001 exited with exitCode: -1000 For more detailed output, check application tracking page:http://master:8088/cluster/app/application_1577461148853_0001Then, click on links to logs of each attempt. Diagnostics: File file:/home/chenjia/.flink/application_1577461148853_0001/application_1577461148853_0001-flink-conf.yaml1177367680042949062.tmp does not exist java.io.FileNotFoundException: File file:/home/chenjia/.flink/application_1577461148853_0001/application_1577461148853_0001-flink-conf.yaml1177367680042949062.tmp does not exist at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:611) at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:824) at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:601) at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:428) at org.apache.hadoop.yarn.util.FSDownload.copy(FSDownload.java:253) at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:63) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:361) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:359) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1762) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:358) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:62) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Failing this attempt. Failing the application.

Flink on yarn 提交任务 文件不存在 不知道是为什么

The program finished with the following exception: org.apache.flink.client.deployment.ClusterDeploymentException: Couldn't deploy Yarn session cluster at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:420) at org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:259) at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:215) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1044) at org.apache.flink.client.cli.CliFrontend.lambda$main$11(CliFrontend.java:1120) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1754) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1120) Caused by: org.apache.flink.yarn.AbstractYarnClusterDescriptor$YarnDeploymentException: The YARN application unexpectedly switched to state FAILED during deployment. Diagnostics from YARN: Application application_1577490600420_0001 failed 1 times due to AM Container for appattempt_1577490600420_0001_000001 exited with exitCode: -1000 For more detailed output, check application tracking page:http://master:8088/cluster/app/application_1577490600420_0001Then, click on links to logs of each attempt. Diagnostics: File file:/home/chenjia/.flink/application_1577490600420_0001/application_1577490600420_0001-flink-conf.yaml1025360586633443671.tmp does not exist java.io.FileNotFoundException: File file:/home/chenjia/.flink/application_1577490600420_0001/application_1577490600420_0001-flink-conf.yaml1025360586633443671.tmp does not exist at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:611) at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:824) at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:601) at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:428) at org.apache.hadoop.yarn.util.FSDownload.copy(FSDownload.java:253) at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:63) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:361) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:359) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1762) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:358) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:62) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Failing this attempt. Failing the application.

maven工程报以下错误，初始化失败、监听器出现问题等 这是怎么回事？

启动maven工程后报以下错误 09:24:39,799 ERROR ContextLoader:316 - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in URL [jar:file:/E:/repository_boot/com/yezi/yezi_common_service/1.0-SNAPSHOT/yezi_common_service-1.0-SNAPSHOT.jar!/applicationContext-dao.xml]: Cannot create inner bean 'com.github.pagehelper.PageHelper#3bc66802' of type [com.github.pagehelper.PageHelper] while setting bean property 'plugins' with key [0]; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.github.pagehelper.PageHelper] for bean with name 'com.github.pagehelper.PageHelper#3bc66802' defined in URL [jar:file:/E:/repository_boot/com/yezi/yezi_common_service/1.0-SNAPSHOT/yezi_common_service-1.0-SNAPSHOT.jar!/applicationContext-dao.xml]; nested exception is java.lang.ClassNotFoundException: com.github.pagehelper.PageHelper at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:327) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:124) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedArray(BeanDefinitionValueResolver.java:389) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:155) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1605) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1357) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:578) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:741) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:409) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.github.pagehelper.PageHelper] for bean with name 'com.github.pagehelper.PageHelper#3bc66802' defined in URL [jar:file:/E:/repository_boot/com/yezi/yezi_common_service/1.0-SNAPSHOT/yezi_common_service-1.0-SNAPSHOT.jar!/applicationContext-dao.xml]; nested exception is java.lang.ClassNotFoundException: com.github.pagehelper.PageHelper at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1380) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:312) ... 26 more Caused by: java.lang.ClassNotFoundException: com.github.pagehelper.PageHelper at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) at org.springframework.util.ClassUtils.forName(ClassUtils.java:274) at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:437) at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1428) at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1372) ... 28 more 十月 17, 2019 9:24:39 上午 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in URL [jar:file:/E:/repository_boot/com/yezi/yezi_common_service/1.0-SNAPSHOT/yezi_common_service-1.0-SNAPSHOT.jar!/applicationContext-dao.xml]: Cannot create inner bean 'com.github.pagehelper.PageHelper#3bc66802' of type [com.github.pagehelper.PageHelper] while setting bean property 'plugins' with key [0]; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.github.pagehelper.PageHelper] for bean with name 'com.github.pagehelper.PageHelper#3bc66802' defined in URL [jar:file:/E:/repository_boot/com/yezi/yezi_common_service/1.0-SNAPSHOT/yezi_common_service-1.0-SNAPSHOT.jar!/applicationContext-dao.xml]; nested exception is java.lang.ClassNotFoundException: com.github.pagehelper.PageHelper at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:327) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:124) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedArray(BeanDefinitionValueResolver.java:389) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:155) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1605) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1357) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:578) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:741) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:409) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.github.pagehelper.PageHelper] for bean with name 'com.github.pagehelper.PageHelper#3bc66802' defined in URL [jar:file:/E:/repository_boot/com/yezi/yezi_common_service/1.0-SNAPSHOT/yezi_common_service-1.0-SNAPSHOT.jar!/applicationContext-dao.xml]; nested exception is java.lang.ClassNotFoundException: com.github.pagehelper.PageHelper at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1380) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:312) ... 26 more Caused by: java.lang.ClassNotFoundException: com.github.pagehelper.PageHelper at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) at org.springframework.util.ClassUtils.forName(ClassUtils.java:274) at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:437) at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1428) at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1372) ... 28 more 十月 17, 2019 9:24:39 上午 org.apache.catalina.core.StandardContext startInternal 严重: Error listenerStart 十月 17, 2019 9:24:39 上午 org.apache.catalina.core.StandardContext startInternal 严重: Context [] startup failed due to previous errors 十月 17, 2019 9:24:39 上午 org.apache.catalina.core.ApplicationContext log 信息: Closing Spring root WebApplicationContext 十月 17, 2019 9:24:39 上午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 严重: The web application [] registered the JDBC driver [com.mysql.cj.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 十月 17, 2019 9:24:39 上午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 严重: The web application [] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 十月 17, 2019 9:24:39 上午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 严重: The web application [] registered the JDBC driver [com.alibaba.druid.mock.MockDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 十月 17, 2019 9:24:39 上午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 严重: The web application [] appears to have started a thread named [mysql-cj-abandoned-connection-cleanup] but has failed to stop it. This is very likely to create a memory leak. 十月 17, 2019 9:24:39 上午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["http-bio-9101"] 十月 17, 2019 9:24:44 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:24:49 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:24:54 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:24:59 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:04 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:09 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:14 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:19 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:24 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:29 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:34 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:39 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:44 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:49 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:54 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:25:59 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:26:04 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:26:09 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:26:14 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:26:19 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:26:24 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. 十月 17, 2019 9:26:29 上午 org.apache.catalina.loader.WebappClassLoader findResourceInternal 信息: Illegal access: this web application instance has been stopped already. Could not load . The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. ``` ```

Android中使用Camera2开发聚焦,前后摄像头切换的拍照功能

使用Camera2开发照相机功能,可以进行重复拍照,刚开始拍照是好的,但是重复拍照的时候就会报错如下,有时候第一次拍照就报错,有时候拍了几十张后报错,报错就是闪退 E/AndroidRuntime: FATAL EXCEPTION: LegacyCameraCallback     Process: com.ajmd.hais.mobile, PID: 24711     java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Surface android.hardware.camera2.params.OutputConfiguration.getSurface()' on a null object reference         at android.hardware.camera2.impl.CameraDeviceImpl$CameraDeviceCallbacks.onCaptureErrorLocked(CameraDeviceImpl.java:1925)         at android.hardware.camera2.impl.CameraDeviceImpl$CameraDeviceCallbacks.onDeviceError(CameraDeviceImpl.java:1693)         at android.hardware.camera2.legacy.CameraDeviceUserShim$CameraCallbackThread$CallbackHandler.handleMessage(CameraDeviceUserShim.java:299)         at android.os.Handler.dispatchMessage(Handler.java:102)         at android.os.Looper.loop(Looper.java:154)         at android.os.HandlerThread.run(HandlerThread.java:61)

cocos lua接umeng SDK

在lua代码require “luaj.lua”文件的时候报错 attempt to index global 'LuaJavaBridge' (a nil value)

Think I’ll Buy Me a Football Team 状态的问题

Problem Description Falling Stocks. Bankrupted companies. Banks with no Cash. Seems like the best time to invest: ``Think I'll buy me a football team!" No seriously, I think I have the solution to at least the problem of cash in banks. Banks nowadays are all owing each other great amounts of money and no bank has enough cash to pay other banks' debts even though, on paper at least, they should have enough money to do so. Take for example the inter-bank loans shown in figure (a). The graph shows the amounts owed between four banks (A ...D). For example, A owes B 50M while, at the same time, B owes A 150M. (It is quite common for two banks to owe each other at the same time.) A total amount of 380M in cash is needed to settle all debts between the banks. In an attempt to decrease the need for cash, and after studying the example carefully, I concluded that there's a lot of cash being transferred unnecessarily. Take a look: 1. C owes D the same amount as D owes A, so we can say that C owes A an amount of 30M and get D out of the picture. 2. But since A already owes C 100M, we can say that A owes C an amount of 70M. 3. Similarly, B owes A 100M only, (since A already owes B 50M.) This reduces the above graph to the one shown in figure (b) which reduces the needed cash amount to 190M (A reduction of 200M, or 53%.) 4. I can still do better. Rather than B paying A 100M and A paying 70M to C, B can pay 70M (out of A's 100M) directly to C. This reduces the graph to the one shown in figure (c). Banks can settle all their debts with only 120M in cash. A total reduction of 260M or 68%. Amazing! I have data about inter-bank debts but I can't seem to be able to process it to obtain the minimum amount of cash needed to settle all the debts. Could you please write a program to do that? Input Your program will be tested on one or more test cases. Each test case is specified on N + 1 lines where N < 1, 000 is the number of banks and is specified on the first line. The remaining N lines specifies the inter-bank debts using an N×N adjacency matrix (with zero diagonal) specified in row-major order. The ith row specifies the amounts owed by the ith bank. Amounts are separated by one or more spaces. All amounts are less than 1000. The last line of the input file has a single 0. Output For each test case, print the result using the following format: k . B A where k is the test case number (starting at 1,) is a space character, B is the amount of cash needed before reduction and A is the amount of cash after reduction. Sample Input 4 0 50 100 0 150 0 20 0 0 0 0 30 30 0 0 0 0 Sample Output 1. 380 120

请问下各位大佬们，我在用ksoap2-Android调用web service服务时出现了stream closed的报错

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for (int i = 0; i < detail.getPropertyCount(); i++) { // 解析出每个省份 result.add(detail.getProperty(i).toString().split(",")[0]); } return result; } // 根据城市获取城市具体天气情况 public static SoapObject getWeatherByCity(String cityName) { String methodName = "getWeather"; HttpTransportSE ht = new HttpTransportSE(SERVICE_URL); ht.debug = true; SoapSerializationEnvelope envelope = new SoapSerializationEnvelope( SoapEnvelope.VER11); SoapObject soapObject = new SoapObject(SERVICE_NS, methodName); soapObject.addProperty("theCityCode", cityName); envelope.bodyOut = soapObject; // 设置与.Net提供的Web Service保持较好的兼容性 envelope.dotNet = true; try { ht.call(SERVICE_NS + methodName, envelope); SoapObject result = (SoapObject) envelope.bodyIn; SoapObject detail = (SoapObject) result.getProperty(methodName + "Result"); return detail; } catch (Exception e) { e.printStackTrace(); } return null; } } ``` 下边是报错内容 ``` 2019-12-22 15:35:47.617 29228-29259/? W/System.err: java.io.IOException: Stream closed 2019-12-22 15:35:47.617 29228-29259/? W/System.err: at java.io.BufferedInputStream.getInIfOpen(BufferedInputStream.java:151) 2019-12-22 15:35:47.617 29228-29259/? W/System.err: at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) 2019-12-22 15:35:47.617 29228-29259/? W/System.err: at java.io.BufferedInputStream.read1(BufferedInputStream.java:275) 2019-12-22 15:35:47.617 29228-29259/? W/System.err: at java.io.BufferedInputStream.read(BufferedInputStream.java:334) 2019-12-22 15:35:47.618 29228-29259/? W/System.err: at org.ksoap2.transport.HttpTransportSE.readDebug(HttpTransportSE.java:299) 2019-12-22 15:35:47.618 29228-29259/? W/System.err: at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:261) 2019-12-22 15:35:47.618 29228-29259/? W/System.err: at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:118) 2019-12-22 15:35:47.618 29228-29259/? W/System.err: at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:113) 2019-12-22 15:35:47.619 29228-29259/? W/System.err: at com.example.weather.WebServicerUtil.getWeatherByCity(WebServicerUtil.java:205) 2019-12-22 15:35:47.619 29228-29259/? W/System.err: at com.example.weather.MyWeather.showWeather(MyWeather.java:147) 2019-12-22 15:35:47.619 29228-29259/? W/System.err: at com.example.weather.MyWeather.access$200(MyWeather.java:21) 2019-12-22 15:35:47.619 29228-29259/? W/System.err: at com.example.weather.MyWeather$3$1.run(MyWeather.java:125) 2019-12-22 15:35:47.619 29228-29259/? W/System.err: at java.lang.Thread.run(Thread.java:761) 2019-12-22 15:35:47.619 29228-29259/? E/AndroidRuntime: FATAL EXCEPTION: Thread-4 Process: com.example.weather, PID: 29228 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object org.ksoap2.serialization.SoapObject.getProperty(int)' on a null object reference at com.example.weather.MyWeather.showWeather(MyWeather.java:150) at com.example.weather.MyWeather.access$200(MyWeather.java:21) at com.example.weather.MyWeather$3$1.run(MyWeather.java:125) at java.lang.Thread.run(Thread.java:761) 2019-12-22 15:35:47.684 29228-29251/? D/EGL_emulation: eglMakeCurrent: 0xa26a6a60: ver 3 0 (tinfo 0xa461a8d0) ```

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