Answer / lina wahab

1- Displays a message that declares the id of the writer
and that it starts the updating
2- Sleeps a random number of seconds between 2 and 4
seconds [2, 4].
2- Increments the content of the shared data
3- Displays a message that declares the id of the writer
and that it finishes the updating
A reader process should read the content of the shared data
and displayed it on the
screen as following:
For each access to shared data for reading:
1- Sleeps a random number of seconds between 2 and 3
seconds [2, 3].
2- displays in one line: the content of the shared data as
well as the id of itself (the reading
process).
Important notes:
1. Let each process run up to 10 iterations.
2. Your solution should ensure the non starvation of readers

Write a program to receive an integer and find its octal equivalent?

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program to Reverse a linked list

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Predict the Output: int main() { int *p=(int *)2000; scanf("%d",2000); printf("%d",*p); return 0; } if input is 20 ,what will be print

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Question: We would like to design and implement a programming solution to the reader-writer problem using semaphores in C language under UNIX. We assume that we have three readers and two writers processes that would run concurrently. A writer is to update (write) into one memory location (let’s say a variable of type integer named temp initialized to 0). In the other hand, a reader is to read the content of temp and display its content on the screen in a formatted output. One writer can access the shared data exclusively without the presence of other writer or any reader, whereas, a reader may access the shared memory for reading with the presence of other readers (but not writers).

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