JetBrains_Project_2025

Task Description

In this task, you will create two programs that interact with each other through standard input and output.

How to run

The controller is program_B.py. It can run the programs program_A.py and program_A.kt.

The programs should be passed as an argument to program_B.py.

Example:

python3 program_B.py program_A.py

or

python3 program_B.py program_A.kt

For Kotlin support (compilation and program running), kotlinc and Java are required to be installed on the system, and added to PATH. I've installed them via Chocolatey.

How to debug

In program_B.py, you need to change the DEBUG value (line 9) from False to True. This way, you can send custom messages to the program_A via the Controller.

Program A: Pseudo-Random Number Generator

Program A will act as a pseudo-random number generator. It reads commands from stdin, where each command is delimited by a line break, and writes responses to stdout. The program should handle the following commands:

• Hi: Responds with "Hi" on stdout.

• GetRandom: Responds with a pseudo-random integer on stdout.

• Shutdown: Gracefully terminates the program.

Any unknown commands should be ignored.

Program B: Controller

Program B will launch Program A as a separate process, provided as an argument. Once Program A is running, Program B should:

• Send the Hi command to Program A and verify the correct response.

• Retrieve 100 random numbers by sending the GetRandom command to Program A 100 times.

• Send the Shutdown command to Program A to terminate it gracefully.

• Sort the list of retrieved random numbers and print the sorted list to the console.

• Calculate and print the median and average of the numbers.