Quick thought to come back to

2020-12-14 10:23:01 -06:00 · 2020-12-14 10:23:01 -06:00 · 35742a00a3
parent 97d2ca55e7
commit 35742a00a3
1 changed files with 1 additions and 0 deletions
--- a/2020/src/day13.nim
+++ b/2020/src/day13.nim
@ -22,6 +22,7 @@ proc part2*(s: Stream): int =
  var i = 0
  while true:
    # TODO: this takes too long, need to learn the math?
+    # maybe between each bus there is a regular period of these "coincidences" and we can reduce along those?
    for j in 1..<ss.len:
      if bb.contains j:
        let d = i+j