Hi, can you help me understand why I got such a strange execution times with my solution for the last challenge? https://kotlinlang.slack.com/archives/C0922A726/p1544400345429600

If you're literally doing

current.prev.prev.prev.prev.prev.prev.prev

- these are nested calls which could be expensive (I think). Try doing it like

repeat(7) { current = current.prev }

Yeah, I’ve tried that first. Got same execution time as with

.prev.prev

.