Mid-term test 1 (variant 2)

The test consists of three tasks located in directories app, physics and ping-pong. Fork the repository, add/edit files in the directories in order to complete the test. The completed test must be submitted as a GitHub pull request to prog-1/test-1-1 repository.

1. Explain what the program in the directory app does. Add your explanations as comments in the source code. Feel free to add any comments that you think are necessary.

2. Write a program in the directory physics. The user provides three numbers: inductance of three inductors L1 L2 and L3. The program must calculate and print the total inductance of three inductors connected in parallel. The total inductance L can be found using the formula 1/L = 1/L1 + 1/L2 + 1/L3.

   Example:

   The program finds the capacity of three inductors connected in parallel.
   Enter inductance of three inductors: 1 2 3
   The total inductance of the three inductors connected in parallel is 0.5454545454545454.
   

3. Write a program in the directory ping-pong that prints the following for a provided number:

   • Ping if the number is NOT divisible by 2;
   • Pong if the number is NOT divisible by 5;
   • PingPong if the number is NOT divisible by both 2 and 5;
   • The number itself otherwise.

   Example 1:

   The program prints Ping, Pong or a number.
   Enter a number: 12
   Pong
   

   Example 2:

   The program pints Ping, Pong or a numbers.
   Enter a number: 10
   10