rare chopsticks

1695 Windowstime limit: 1 sspace limit: 128000 KBtitle level: Golden Gold SolvingView Run ResultsTitle DescriptionDescriptionAdamyi's Windows 2013 timed out (--!), so he had to witness the movie scene in front of his own house. Although he did not want to miss this wonderful moment, his belly protested repeatedly and demanded that the Last supper be eaten first.Now adamyi ready to eat N-dishes in turn. But he only use spoons and chopsticks to eat, spo

Java concurrency Programming in the 9th chapter of the main introduction of GUI programming, in the actual development is rarely seen, so this chapter of the notes temporarily first put, from the 10th chapter to the 12th chapter is the third part, that is, activity, performance, and testing, this part of the knowledge of the partial theory more, But as far as possible to use the code to understand the problem without words, words do not say more, into the topic.One, deadlockIn the learning of Ja

the blocking queue to communicate, so producers do not have to wait for consumer processing after the production of data, directly to the blocking queue, consumers do not find producers to data, but directly from the blocking queue, the blocking queue is equivalent to a buffer, Balance the processing power of producers and consumers. Multi-threaded in the famous design pattern, back in-depth study supplement. 9. The problem of dining philosophers (deadlock Dead-lock) Suppose there are five phi

:" Although the Department of Imperial clan, is to keep the dog ear, what foot for the hero! "Xuan de Yue:" such as Zhang Embroidery, Zhang Lu, Han and so the generation of all? "Clap and laugh," said the drab assortment mediocrities villain, Hezuguachi! "Xuan Tak Yue:" Beyond this, the preparation is not known. "To speak:" The hero of the husband, ambition, the abdomen has good plans, there is the space of the machine, the world's ambition to huff and puff. "Hyun Tak Yue:" Who can be? "To the f

(count//If there is a process blocking the This. Notify ();// All + } A } the } + - classglobal{ $ StaticSyn chopsticks[]=NewSyn[5]; $ Static intCount=0; - Global () { - inti; the for(i=0;i){ -chopsticks[i]=NewSYN (1);//Initialize the semaphoreWuyi } the } - } Wu - classPhilosopherImplementsrunnable{//Philosopher Class About intId=0; $ ph

Today, I went to qingwa buju with me to have dinner. This Korean restaurant is very popular online, and some groups have been touching it (such as POCO), which is why even mm is clamoring. Sorry, she just went. At lunch time, a visitor did not even visit the door, and the waiters chatted in front of the counter. And want to order a place from trademanager? Alas, why are cows flying in the sky, because Poco is playing on the ground ~ I ordered three barbecues and a bibimbap. The taste is still

very likely to be an older woman they eat at night, gradually I heartache up, not only loss of appetite, forget, or do not eat as well ...Just picked up the chopsticks said to watch TV, Grandpa came back from the outside, immediately asked us to sit three to listen to his speech.Grandpa has taught us three people, from the family, from the society, from the economy, from the future, from the survival of our family .... There is true meaning in this,

following deadlock status occurs. Thread tries to lock a lock two times Philosophers dining [n philosophers, n chopsticks, philosophers take chopsticks in one direction at the same time, take the other side of the field before you can eat] The thread attempts to lock a lock two times: #include Operation Result:650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M00

thread1=new thread (LOCK1); Thread thread2=new thread (LOCK2); Lock1.setflag (0); Lock2.setflag (1); Thread1.start (); Thread2.start (); } Private static Object Obj1=new object ()//a chopstick lock Private static Object Obj2=new object ()//The lock of a B chopstick private int flag=0; public int Getflag () { return flag; } public void Setflag (int flag) { This.flag = Flag; } public void Eatmeat () { Synchronized (obj1) { System.out.println (Thread.CurrentThread (). GetName () + ": Get a chops

resources cannot be forcibly deprived of the corresponding process(4) Cyclic waiting condition (circular wait): Several processes in the system form a loop in which each process waits for resources that are being occupied by adjacent processes.3. Strategies for handling deadlocksBy breaking the deadlock four of the necessary conditions to prevent deadlock generation. The question of dining philosophers: The question involves five philosophers who alternately think and dine.They sit at a round t

Method typing-upgrading a method or some methods (accurately speaking, a method header or interface) to a type is a common technical basis and Design Concept of the method pattern.. Java encapsulates this interface as an abstract class or interface type. The role of the Java interface is fully demonstrated here. In rule mode, the sorting rule int [] Sort (INT [] ARR) is encapsulated by the abstract class intsort. More examples of method typing are described in the subsequent sections. This secti

are a manufacturer of chopsticks, if your chopsticks are sold to the mainland three-tier cities or rural areas, low-volume, quality OK to become the only demand for products, it has no "hidden experience" in this level, and when you make the chopsticks factory bigger, to export, perhaps you have to consider a lot of problems, For example, the environmental prote

model? Perhaps a lot of people have taken part in military training, know the army inside eat? By the time of the meal, all the training teams were pulled to the front of the cafeteria. First arrived on the advanced to eat, after the outside to pull the song, waiting for the next wave, here we do not explain how to arrange for each meal. Let's start by saying that every brother in grid needs those guys to eat. Let's take a look at the webmaster map: Here we have a block of soldiers (16 people)

, but the customer can always get the loan in a limited time. (4) When the customer receives all the necessary funds, they will be able to return all the funds in a limited time.The problem of dining philosophersFive philosophers in a round table dining, everyone must pick up two forks to eat;The solution to the problem of dining philosophers: (1) Waiter solution: The waiter as a manager, the philosopher in the fork before the need to obtain the waiter's consent; (2) a maximum of 4 philosophers;

One.Next is also a synchronization of a small knowledge point, when we use synchronization, there will be a phenomenon, deadlock.Under what circumstances is the lock dead? One of the most common forms of expression in our program is the nesting of synchronizations. The image of the saying is: Two people each have a chopsticks, all want to eat, the result is disputed, who can not eat. Harmonious situation is, chops