adventofcode/2021/day15
Érico Nogueira becc8a3487 Advent 2021, day 15: speed up.
Racket 8.3 had a performance regression that caused hashing pairs of
small numbers to take a long time. Using a vector made it substantially
faster (2 min -> 15 s).

See also [1] for upstream bug report.

[1] https://github.com/racket/racket/issues/4098
2021-12-18 21:54:43 -03:00
..
p.py Advent 2021, day 15: fix part 2. 2021-12-16 22:55:44 -03:00
p.rkt Add Advent 2021 - day 15. 2021-12-16 16:24:32 -03:00
p2.rkt Advent 2021, day 15: speed up. 2021-12-18 21:54:43 -03:00
test1.txt Add Advent 2021 - day 15. 2021-12-16 16:24:32 -03:00
test2.txt Add Advent 2021 - day 15. 2021-12-16 16:24:32 -03:00
test3.txt Add Advent 2021 - day 15. 2021-12-16 16:24:32 -03:00
test4.txt Advent 2021, day 15: fix part 2. 2021-12-16 22:55:44 -03:00