I also misunderstood this as I thought this is a decrementing sequence (...432)109(876...), but in reality it's only valid if it ends at the 0. The description could be interpreted both ways, yay english.

For decrementing sequences, 0 should come after 1, and not before 9, as in 3210.

109 is not a decrementing sequence.

I think "109" contradicts the condition. I had to add a supper stupid condition to the condition to pass this test)

Meen, if it wasn't for you I would have thrown this case. Thanks!))

how many unknown operators.
But it looks very interesting)

What a pity that I don't know what a "map" is.
Every time I read such short codes and there is something incomprehensible)

Test.assert_equals(pick_peaks([____]), {"pos":[3,7], "peaks":[6,3]})
This is shown in the example.

If you have an error here when testing a task, you can just send the results.
With this check, everything will be fine

I'm solving python 3.