Using the language C, you will use ordinary pipes to implement an inter-process communication scheme for message passing between processes. Assume that there are two directories, d1 and d2, and there are different files in each one of them. Also, each file contains a short-length string of characters. You have to use a parent process that forks two children processes, and have each child process check one of the directories. Assume that child 1 (child 2) is responsible to check the directory d1 (directory d2, respectively). This child process has to create a list of names of the files in the directory and their contents.
After creating the list, each child process will send its list to the other child process using a pipe.
Upon receiving the list, child 2 (child 1) will create the files listed by child 1 (child 2) in directory d2 (directory d1, respectively) and fill the files with their initial contents.

After these steps, the directories d1 and d2 should be identical.

Helen's credit card has an apr of 15.32% and a grace period of 17 days and helen pays her balance in the full every month. if her last billing cycle ended on september 26, 2009, and she made her payment on october 11, 2009, did she owe any interest on her last statement's balance?

This program should be a short piece of code that prints all of the positive integers from 1 to 100 as described more fully below. the program may contain multiple methods, and if using an oo language, should be contained within a single class or object. the program should be designed so that it begins execution when invoked through whichever mechanism is most common for the implementation language. â–ş print out all positive integers from 1 to 100, inclusive and in order. â–ş print messages to standard output, matching the sample output below. â–ş in the output, state whether the each integer is 'odd' or 'even' in the output. â–ş if the number is divisible by three, instead of stating that the number is odd or even, state that the number is 'divisible by three'. â–ş if the number is divisible by both two and three, instead of saying that the number is odd, even or divisible by three; state that the number is 'divisible by two and three'. â–ş design the logic of the loop to be as efficient as possible, using the minimal number of operations to perform the required logic. sample output the number '1' is odd. the number '2' is even. the number '3' is divisible by three. the number '6' is divisible by two and three.

Need fast im timed in a paragraph of 125 words, explain at least three ways that engineers explore possible solutions in their projects.