Answer Posted / sriram

The reader and writer problem is IMPLEMENTED THROUGH
SEMAPHORES.

THE EFFECTIVE SOLUTION TO SOLVE THE READER AND WRITER
SOLUTION IS :


A) If a writer is waiting in the ready queue to enter
into the critical section, then the current reading process
should be completed without delay.

B) Only one reader can be put into the ready queue
because the writer is waiting.

c) The semaphores such as ReadCount-to count the number
of reader in ready queue,
Reader and Writer, these are the important semaphores to
solve the reader and writer problem.

Definition of priority queue was given. We have to implement the priority queue using array of pointers with the priorities given in the range 1..n. The array could be accessed using the variable top. The list corresponding to the array elements contains the items having the priority as the array index. Adding an item would require changing the value of top if it has higher priority than top. Extracting an item would require deleting the first element from the corresponding queue. The following class was given: class PriorityQueue { int *Data[100]; int top; public: void put(int item, int priority); // inserts the item with the given priority. int get(int priority); // extract the element with the given priority. int count(); // returns the total elements in the priority queue. int isEmpty(); // check whether the priority queue is empty or not. }; We had to implement all these class functions.

4961

---

How to Split Strings with Regex in Managed C++ Applications?

3683

---

how to diplay a external image of output on winxp by using c & c++,

3464

---

write a function that reverse the elements of an array in place.The function must accept only one pointer value and return void.

4590

---

Code for Small C++ Class to Transform Any Static Control into a Hyperlink Control?

3070

---

write a program that can LOCATE and INSERT elements in array using c++ programming languages.

4041

---

Write a program that print in screen a tree with its height taken from user by entering number of 4 digits and find the odd numbers then calculate the sum of odd numbers so he get the height of tree?

3369

---

i really need help about this.. write a program to display the set of odd and even numbers separately. find the highest and lowest value of the given numbers.

2727

---

write a program that creates a sequenced array of numbers starting with 1 and alternately add 1 and then 2 to create the text number in the series , as shown below. 1,33,4,6,7,9,............147,148,150 Then , using a binary search , searches the array 100 times using randomly generated targets in the range of 1 to 150

3782

---

find level of following tree (state, parent) " J,D I,D H,C E,B F,B G,C B,A D,A C,A A,& K,E L,E L,F M,F N,G O,H P,I P,H Q,I R,J S,K U,P T,L

2469

---

Implement a command console for changing settings on a particular object. The command console should allow you to enter a string and will return the response (very similar to a terminal session). The commands are as follows: SET propertyname=newvalue will change the target object’s member named “propertyname” to have a value equal to “newvalue”. If the input value is incompatible (i.e. an int being set to a string), print out an appropriate error message. GET propertyname will print out the current value of the target object’s member named “propertyname”. GET * will print out a list of all target object members and their current values. The system should be extensible for future commands and should accept an arbitrary object, such that another developer could insert another object into the system and rely on the command console to get and set the properties correctly.

3954

---

Code for Easily Using Hash Table?

3049

---

write a program that reverses the input number of n.Formulate an equation to come up with the answer.

7694

---

How can I Draw an ellipse in 3d space and color it by using graph3d?

2651

---

What output does the following code generate? Why? What output does it generate if you make A::Foo() a pure virtual function? class A { A() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; class B : public A { B() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; int main(int, char**) { A objectA; B objectB; return 0; }

1245

---