day 4 - did you use map for performance?

[tivrfoa]

Hi!

mapping is not necessary:

-                    .map(|n| &n[1..])
-                    .filter(|n| win_seq.chunks_exact(3).map(|n| &n[1..]).any(|c| &c == n))
+                    .filter(|n| win_seq.chunks_exact(3).any(|c| &c == n))

Did you do that for performance?

Maybe you could enable "Discussion" for this project 😄

[timvisee]

Correct, it's for performance.

• With: 17 μs
• Without: 27 μs

Maybe you could enable "Discussion" for this project 😄

Good idea! Doing that now.