microcell lights

Energy saving time limit: Ms | Memory limit: 65535 KB Difficulty: 5 Describe Dr.kong designed robots are getting smarter. Recently, the municipal company handed over a task to the city, starting 5:00 every day, it was responsible for shutting down all the street lights on the right side of ZK Avenue. Every 5:00, he will be next to a street lamp on ZK Avenue, then he starts to turn off the light. Each lamp has a certain

condition variables: callback function protection, locking before the condition, and unlocking after pthread_cond_wait () is returned. The conditional variable mechanism is not asynchronous signal security, that is, calling pthread_cond_signal () or pthread_cond_broadcast () in the signal processing function may cause a deadlock. 3. signal lights The main difference between traffic lights and mutex locks a

The home base station can provide the mobile communication capability inside the house at the maximum data rate, and does not need to install micro-cell Node B. They are divided into "micro-cells. + 45dbm-the micro-cell base station covers the outdoor area ~ 5 km+ 30dbm-microcell base station coverage zone ~ 0.5 km+ 15dbm-femto base station coverage: 50 m inside the house The femto base station network is connected through the public telephone netwo

active oil-based interface is easy to gather, and its relative water-based interface is in the oil. It is easy to face each other. The reason for this phenomenon is that the internal part of the micro cells in the water is the oily end, solubilization ). The oil stains melted into the microcell are not easy to touch the surface of the object, and the result is the effect of decontamination and cleaning. Generally, household cleanup workers are mainly

--------Android Training, Java training, look forward to communicating with you! --------Traffic Light Management system:Demand:Simulate the intersection of traffic lights management system logic, the specific requirements are as follows:1. Asynchronously randomly generates vehicles that follow each route.For example:Vehicles from south to north turn right.From the east to the south of the vehicle enumeration to achieve. Enumeration is a special (clas

comment 2 is not defined, the system will suspend the child2 request lock. If the latency of comment 3 and comment 4 is not included at the same time, child2 can be controlled before Child1 completes the cancellation action, so that the lock application operation can be smoothly executed, but it may be suspended in pthread_cond_wait (), because there are also mutex application operations. The Child1 function provides the usage of standard condition variables: callback function protection, locki

button has been pressed. Lamp 7 is off in the final configuration.Output Format Lines with all the possible final invocations (without repetitions) of all the lamps. each line has n characters, where the first character represents the state of Lamp 1 and the last character represents the state of lamp n. A 0 (zero) stands for a lamp that is off, and a 1 (one) stands for a lamp that is on. the lines must be ordered from least to largest (as binary numbers ). If there are no possible distribution

B. Om Nom and Dark ParkTime limit:1 Sec Memory limit:256 MBTopic ConnectionHttp://codeforces.com/contest/526/problem/BDescriptionOm Nom is the main character of a game "Cut the Rope". He is a bright little monster who likes visiting friends living at the other side of the park. However the dark old parks can scare even somebody as fearless as Om Nom, so he asks your to help him. The park consists of 2n + 1-1 squares connected by roads so the scheme of the park was a full binar Y Tree of de

Although the path is a one-off, but at Hengtong base of the subjects three but took three months to pass, unavoidably sigh. subjects three difficult, not to mention how, but lies in the details of the grasp, so girls more easily than boys, at least my teacher with the girls are disposable, but the boys hang more, because of carelessness, and section Three is the wrong point hanging this. first of all, do not think of the section three is too difficult, Heng Tong This is a person test, so the mai

Lamps Problem Solving Report--------------------------------------------------------------------------------------------------------------- ---------------------------------TopicN lights, numbered 1~n. There are 4 switches, and C times the chance to change the status of a switch, how can the end of all the lights out of the situation may be?One switch: Change the status of all lights.Switch Second: Change t

Title Descriptionat IOI98 's festive party, we had n (10These lights are connected to four buttons: Button 1: When this button is pressed, all lights will be changed: the light on the original is turned off, and the lamp that was originally closed is lit. Button 2: When this button is pressed, all the odd number lights will be changed. Button 3

I'm a front-end developer, but I think the story resonates with any developer who's been feeding you a bug. "The light on the 26 floor meeting room is lit. It needs to be extinguished. "You should be able to get it done in 5 minutes, just click on the switch," wrote the note in the bug. "You went to the conference room on the 26 floor.　　The light was on, but there was no light switch in the room. So, you're ready to install one. But the designer said it would spoil the beauty of the room. In add

controlled before child1 completes the cancellation action, so that the lock application operation can be smoothly executed, but it may be suspended in pthread_cond_wait (), because there are also mutex application operations. The child1 function provides the usage of standard condition variables: callback function protection, locking before the condition, and unlocking after pthread_cond_wait () is returned. The Conditional Variable mechanism is not asynchronous signal security, that is, calli

cancellation action, so that the lock application operation can be smoothly executed, but it may be suspended in pthread_cond_wait (), because there are also mutex application operations. The Child1 function provides the usage of standard condition variables: callback function protection, locking before the condition, and unlocking after pthread_cond_wait () is returned. The Conditional Variable mechanism is not asynchronous signal security, that is, calling pthread_cond_signal () or pthread_co

(fakeDuck. getClass (). getSimpleName () + says ...); testDuck (fakeDuck);} private static void testDuck (Duck duck) {duck. quack (); duck. fly ();}} Program output: MalladDuck says...I am quacking...I am flying...TurkeyAdapter says...I am goggling ....I am flying short distance...I am flying short distance...I am flying short distance...I am flying short distance...I am flying short distance... Appearance pattern class diagram Core code: Package facade;/*** simplified interface * @ author

will be cleared at night (including any marks on the light ). The cell is completely closed and the lights in the yard are invisible to the cell. Only those who let the wind out of the yard can see it. Now I want to make a request to you. If you do, you can release all of them: several days later, if one of you can prove to me that all of you have been in the yard, you will be all released. Of course there must be evidence! Because I will only give y

, or directly to see the network card lights, to see the router network interface of the light, whether it is bright. If the light is not on, that is the physical link does not pass. In general, look at whether two of the network cable is loose, including plugged into the computer and inserted in the router that head. The network physical link is normal, the green light is bright. If the light is not lit, you can change the network cable or crystal h

lock. However, it may be suspended in pthread_cond_wait () because there is also an operation to request a mutex. The Child1 function gives the use of standard condition variables: callback function protection, pending condition locking, pthread_cond_wait () back to unlock. The conditional variable mechanism is not safe for asynchronous signals, that is, calling pthread_cond_signal () or Pthread_cond_broadcast () in a signal processing function is likely to cause a deadlock. Three

Use of logcat According to the definition in system/CORE/include/cutils/log. h:49 /*50 * normally we strip alogv (verbose messages) from release builds.51 * you can modify this (for example with "# define log_ndebug 0"52 * at the top of your source file) to change that behavior.53 */ Alogv is valid only when # define log_ndebug 0 is placed in your code. Of course, you must put# Include before You can print the file name, function name, and row number as follows:50 alogv ("Yasin test file = % s \

: Binary signal light: the simplest form of signal light. The signal light value can only be 0 or 1, similar to mutex lock. Note: the binary signal lamp can implement the mutex lock function, but the two have different concerns. The signal lamp emphasizes shared resources. As long as the shared resources are available, other processes can also modify the signal lamp value. The mutex also emphasizes the process. After resources are used by the process, it must be unlocked by the process itself.