Thanks a lot. It helped. I got idea, probably it is that beings are not floats

See the example in the description and you'll find out what you're doing wrong there. The test is fine.

I have the same problem. Here is the results of calculation
input
p0 -1000, %- 2.0, aug - 50, p - 1214
Output
1070.0
1
1141.4
2
1214.228
3

Calculation (manual)
p % aug
1 year 1 000,00 0,02 1,02 50 1 070,00
2 year 1 070,00 0,02 1,02 50 1 141,40
3 year 1 141,40 0,02 1,02 50 1 214,23

You may want to play around with Math.ceil and Math.floor ........

input
p0 -1000, %- 2.0, aug - 50, p - 1214

Calculation
1 year - 1000.00 * 1.02 + 50 = 1070.00
2 year - 1070.00 * 1.02 + 50 = 1141.40
3 year - 1141.40 * 1.02 + 50 = 1214.23

output
1070.0
1
1141.4
2
1214.228
3
Desired value - 1214, we get 1214.228 in 3 years
How it can be 4 years? That is the question
In 4 year the value will be 1 289,51

Great, I lke it

To me, this is the best practice.

It turns out
First, we define an empty list as a dictionary value.
And then, we add values to the list using the append function.

great idea with reverse method, thanks

Do we need to make a pattern for the test results? That is, if the string in the test is "aaacccddd" and the result is False, then the pattern should be something like r"efg"?

I didn't know that the method could be applied like this. Thanks for the code

Thank you both for the code and the explanation