Write a function that takes a string and returns a map where each key is a character and its value is the number of its occurrences in the given string.

For example, for the string “kotlin”, the function should return the map: {k=1, o=1, t=1, l=1, i=1, n=1}.

Complete the code of the countCharacters function.

1. Fill in the code.
2. You can copy the code into IntelliJ/Android Studio, but it shouldn’t be necessary.
3. Click “run” – the green triangle. The code will compile and several tests will be run.
4. In the logs, you will see “try again” if the solution is incorrect, or “success” and a special code.
5. Provide this code in the form below along with your email and click “send”.
6. Solutions will be presented the next day on Instagram