Queue Definition and 32 Threads

In computer science, a priority queue is an abstract data type similar to a regular queue or stack data structure in which each element additionally has a "priority" associated with it. In a priority queue, an element with high priority is served before an element with low priority. In some implementations, if two elements have the same priority, they are served according to the order in which they were enqueued, while in other implementations, ordering of elements with the same priority is undefined.
While priority queues are often implemented with heaps, they are conceptually distinct from heaps. A priority queue is a concept like "a list" or "a map"; just as a list can be implemented with a linked list or an array, a priority queue can be implemented with a heap or a variety of other methods such as an unordered array.

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  1. J

    A discrete-time queue Markov Chain problem

    The following problem is seriously tricky and I urgently need help with it, thanks. For part a: we have the following transition probability matrix P = a0 a1 a2 a3 a0 a1 a2 a3 0 a0 a1 b2 0 0 a0 b1 Now, is a0 = a1 = a2 = a3 =...
  2. chwala

    Permutation problem: Seven friends queue up for a buffet....

  3. P

    Jupiter's Gravity: How Many Ships in the Queue?

    Imagine you are in the universe of the Expanse book. First of all, you want to speed up your spaceship to reach the alien gate. And you will use Jupiter's gravity. But there is a queue of spaceship wanting to go to the gate, and they all use Jupiter's gravity to accelerate. Suddenly Jupiter...
  4. I

    Learning Data Structures in Java: Circular Queue

    Summary:: I have recently started with data structures in java and I tried doing this Program .But I have few confusions. 1.How do I write the main() of the program? 2.What are we supposed to do with the value returned by function pop()? If anyone could point out if there are any errors and...
  5. J

    Comp Sci Modeling the queues at a college restaurant

    So far, I have implemented the code below, using Java Priority Queues and Maps. I tried to identify each customer by the time they came in (ranging from 360 and onwards) and their grades. However, this is my first time using priority queues and maps, and I am not very sure if I'm doing things...
  6. E

    About the strategy of reducing the total suffering in a queue

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  7. Mehmood_Yasir

    A Waiting time in a Queue using Poisson arrival

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  8. mertcan

    I M/G/C Queue Theory: Proving Results & Finding Sources

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  9. G

    Data structures and algorithms: Priority queue as Binary Tree

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  10. M

    Is Discarding the Higher Random Number in a Stochastic Queue Simulation Correct?

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  11. J

    MHB Double ended queue data abstraction.

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  12. O

    Real life queue - how to model?

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  13. evinda

    MHB Exploring Static Queue Operations and Complexity

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  14. B

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  15. S

    Finding Core Number On Queue and LSF

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  16. C

    Statistics Queue problem: M/M/2

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  17. L

    M/M/1 Queue System: Calculating A, B, C

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  18. D

    How to creaate a priority queue using print queue

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  19. M

    How Can You Minimize Processing Time Across Multiple Plants?

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  20. S

    Queue is i am in the right trick

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  21. M

    Stochastic processes: infinite server queue with batch poisson arrivals

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  22. J

    C/C++ Queue made with pointers in C++, questions

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  23. A

    Queuing Theory problem, M/M/1/K queue with twist

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  24. A

    Queuing Theory problem (M/M queue)

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  25. 0

    Checking if a circular queue is full

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  26. M

    What Distribution Best Models Passenger Queue Arrivals Within Fixed Timeframes?

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  27. S

    News Why wouldn't the LHC break on queue?

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  28. A

    Solving: Why Destroying a Queue Doesn't Work

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  29. S

    Can You Improve the Time Complexity of Building a Queue with Stacks?

    Hello, I'm tasked with building a queue from as many stacks as I'd like, trying to get the fastest implementation possible. The best I can think of is using two stacks and as you enqueue items you push them on the first stack stack, but every time you want to dequeue if there are n items...
  30. L

    Angle of Queue Ball after elastic collision

    Homework Statement Assume an elastic collision (ignoring friction and rotational motion). A queue ball initially moving at 2.2 m/s strikes a stationary eight ball of the same size and mass. After the collision, the queue ball's final speed is 0.61 m/s. Find the queue ball's angle \theta...
  31. S

    Having Trouble with 'D' Option in Stack and Queue ADT Program?

    Hello everyone, I have been trying to figure this problem since hrs, please help me out. It is most likey very easy for you people. I think the problem is mostly syntax but here it is. I am writing this program which uses Stack and Queue ADT . If you look at the code the program is...
  32. E

    What is the distribution of service in a M/M/1 airport simulation queue?

    I hope this is the right 'subforum' to post my question, if not, sorry, I was not sure... What kind of model is airport simulation of a queue (planes land and take off) with one runway (one server only). I am sure about the first and the last parameter but not about the 'middle': M/(const)/1...
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