filter() returns an iterator, so it has to be turned into a list to match the output format

I'm new to programming and still learning how to use dictionaries. Your solution showed me a great use for them!

very elegant solution

Nice use of any. Makes this better than using next like I did.

please help me understand it

this solutiion works much faster than first, esecialy for big arrays
there are benchmarks for 100 000 000 elements

find_outlier_1
10.340000 0.270000 10.610000 ( 10.611158)
find_outlier_2
1.960000 0.000000 1.960000 ( 1.968448)

find_outlier_1
9.890000 0.320000 10.210000 ( 10.219760)
find_outlier_2
7.720000 0.000000 7.720000 ( 7.731714)

Very clean, and nice solution. Even It has issues.

Definitely better than the "top" answer... and mine too, for that matter :)

Completely agree! It's also closer to how a human would work it out manually. For relatively simple tasks like this, the "obvious" approach that omost people would take, tends to be the most optimal too.