day18, example second parallel

2023-12-18 20:33:04 +00:00
parent 568fdd9a70
commit 6efd55ae6a
2 changed files with 126 additions and 79 deletions
--- a/day18/notes.org
+++ b/day18/notes.org
@@ -34,3 +34,18 @@ day18 result: 952408144115

 952408144115
 *** YES.
+*** about 1M for 4 minutes
+** so, my input is ~16M rows
+3.5 seconds per 10k
+** well, maybe i can parallel.
+*** parallel example
+day18 result: 952407566854
+*** and with separate done channel from the summing goroutine
+952408144115
+**** YES
+** and
+2023/12/18 23:35:31 border is 195341588; inside is 148441957805559
+2023/12/18 23:35:31
+
+day18 result: 148442153147147
+* i should have used a formula. maybe then it would taken less than 4 hours