magical
318adbd307
day 24 part 1
2023-12-24 05:56:48 +00:00
magical
a940dff830
day 21 cleanup
2023-12-24 04:51:38 +00:00
magical
c5d4f796e0
day 21 part 2 solve!
...
this is messy because i went in like three unsuccessful directions
before hitting on an approach that worked
2023-12-24 03:24:35 +00:00
magical
d3d175a038
day 23 cleanup part 1
2023-12-23 08:36:14 +00:00
magical
7c2e376938
day 23 part 2
2023-12-23 07:30:37 +00:00
magical
219cde7d0a
day 23 part 1
2023-12-23 06:04:49 +00:00
magical
c291508b82
no turning back
2023-12-22 09:16:15 +00:00
magical
dae0597628
day 20 part 2 answer
2023-12-22 09:11:41 +00:00
magical
fd8de9c7c2
ignore more samples
2023-12-22 09:00:58 +00:00
magical
3dff6a2247
day 22 cleanup
2023-12-22 08:54:07 +00:00
magical
efd7f887b8
day 22 part 2
2023-12-22 06:47:19 +00:00
magical
2635e69315
day 22 optimization
2023-12-22 06:27:36 +00:00
magical
f805d9d373
day 22 part 1
2023-12-22 06:23:52 +00:00
magical
52a2184a3c
day 21 part 1
2023-12-21 05:20:42 +00:00
magical
f3b38a3ece
day 20 part 2, sorta
...
finish this up later
2023-12-21 05:02:12 +00:00
magical
7178a11eee
day 20 part 2 attempt
...
i don't think brute force is going to work
2023-12-20 06:03:08 +00:00
magical
9165dd7d86
day 20 part 1
2023-12-20 06:02:43 +00:00
magical
61c44b283c
day 19 cleanup
2023-12-19 07:06:29 +00:00
magical
7b51d4b8dd
day 19 part 2
2023-12-19 06:38:56 +00:00
magical
b95527ad1d
day 19 part 1
2023-12-19 05:31:27 +00:00
magical
6704766eba
use dict for 'visit' var in day 16
...
not sure if this is an improvement? it's more or less the same
as the array version
2023-12-19 04:57:53 +00:00
magical
ef2711b76f
prelude: add ltranspose
2023-12-19 04:54:36 +00:00
magical
7baf6aa596
prelude: add lextract
2023-12-19 04:50:01 +00:00
magical
89dcdeb553
prelude: add an example for transform
2023-12-19 04:49:17 +00:00
magical
3faf36c645
ignore extra samples
2023-12-18 06:40:01 +00:00
magical
578f6e87ac
day 18 part 2
2023-12-18 06:37:56 +00:00
magical
bf4e88d66f
day 18 part 1
2023-12-18 05:20:25 +00:00
magical
fe76e83e98
day 17 fix cost calculation
...
i was accidentally using the previous coordinates to calculate the cost
for each node, which means the A* search was effectively calculating the
cost of the return trip instead of the forward path.
doesn't affect the path at all - the start and end nodes are fixed, so
it doesn't matter whether their costs are included or not - but it does
mean that the cost being returned at the end was off by ((value at end
point) - (value at start point)) compared to the expected value.
2023-12-17 06:42:34 +00:00
magical
14ef33326e
day 17 solution
...
there's a small bug in the cost calculation which will be fixed in the
next commit
2023-12-17 06:26:31 +00:00
magical
539cf753d0
day 16 cleanup
...
switch to globals (passing array names around is ugly).
(maybe look into dicts sometime?)
also, properly detect width/height from the input
instead of hardcoding it
2023-12-17 06:24:26 +00:00
magical
c592761d00
day 15 use dicts
...
tcl's dict type is exactly what we need for this problem:
an order-preserving de-duplicated list of key-value pairs.
2023-12-16 06:57:12 +00:00
magical
94bf752568
day 16 part 2
2023-12-16 06:02:16 +00:00
magical
b14209ff39
day 16 part 1
2023-12-16 05:43:57 +00:00
magical
f638ffbff7
day 15 solution
2023-12-15 06:11:06 +00:00
magical
5ad3c05219
day 14 part 2
2023-12-14 09:46:06 +00:00
magical
cf548cb740
day 14 part 1
2023-12-14 09:45:13 +00:00
magical
632022d073
add more helpers
...
llen and slen to get the length of a list or string.
trim, replace and splitstr for common string operations.
2023-12-13 07:13:37 +00:00
magical
b99ad03de5
day 13 part 2
2023-12-13 06:04:18 +00:00
magical
918d64f258
day 13 part 1
2023-12-13 05:44:49 +00:00
magical
c55423d6f3
day 12 cleanup
2023-12-12 09:41:08 +00:00
magical
99405e2ad0
day 12 solution
2023-12-12 09:27:06 +00:00
magical
e8a6d55fa8
day 11 part 2
2023-12-12 04:56:27 +00:00
magical
b7062a7801
day 11 part 1
2023-12-11 05:31:14 +00:00
magical
55158903e6
day 10 much faster fill with numpy
2023-12-10 07:39:06 +00:00
magical
3b5b9f3839
day 10 more efficient fill
...
i also tried getting rid of the 'next' dict and just keeping track of a
boolean of whether we changed anything on each pass, but that made it
slower somehow. cache effects i guess?
2023-12-10 07:03:54 +00:00
magical
3ba6804013
day 10 cleanup, make fill slighly more efficient
2023-12-10 06:43:32 +00:00
magical
c111075e16
day 10 part 2
2023-12-10 06:30:14 +00:00
magical
a395a39fac
day 10 part 1
2023-12-10 05:35:54 +00:00
magical
395ad666c8
fix lmul
2023-12-09 07:16:10 +00:00
magical
484c0744fb
add a note
2023-12-09 07:15:58 +00:00
magical