Advent of Code 2023

       

My solutions to the advent of code 2023

Results

Day	Task 1	ᴍs	Task 2	ᴍs	Total Execution Time (ᴍs)
1	56465	0.534	55902	5.001	5.535
2	2617	0.294	59795	0.248	0.542
3	535351	1.962	87287096	0.348	2.31
4	25183	1.223	5667240	1.261	2.484
5	324724204	0.908	104070862	81013.363	81014.704
6	1195150	0.017	42550411	44.144	44.162
7	248559379	4.938	249631254	7.643	12.581
8	21389	56.578	21083806112641	187427.929	187484.859
9	2098530125	1.068	1016	0.95	2.017
10	6867	2199.595	595	276687.885	278887.919
11	9550717	3.763	648458253817	3.236	6.999
12	7173	4337.034	❌	0	4337.034
13	29846	0.262	25401	0.648	0.91
14	108144	1.719	108404	628.327	630.045
15	508498	0.582	279116	2.384	2.967
16	7046	275.595	7313	63377.75	63653.765
17	❌	0	❌	0	0
18	56678	1242.349	79088855654037	406.834	1649.481
19	362930	3.148	116365820987729	48593.081	48596.67
20	670984704	11.504	❌	0	11.504
21	3574	269.225	-1	0.002	269.227

How to Run

Create a .env file containing session=COOKIE (where COOKIE is your AoC cookie). This is used for downloading the puzzle input.

The goal is to not use any external modules, only those built in to the node runtime (this means no package.json). Node v12 and above should work for the puzzles (node index), but v18 is required for node index download day for the newly supported fetch API

index.js in the root directory contains a basic test runner to run each day's tasks and compare answers. This file will be updated with new days as they come.

• node index to run the benchmark.
• node index download day to setup a day's files

Example

node index

Returns output in the format of

Day X
------
Task A is Correct (ANSWER) (took Zms)
Task B is Wrong (expected EXPECTED but got ACTUAL) (took Zms)

How the Test Runner works

Each day will output an array of objects ([{ms: number, ans: object}]) representing the result of each task within that day.

The test runner knows what the answers should be, these are stored in an array of arrays with each array representing the answers for each day.

For example

[[DAY 1 TASK 1 ANSWER, DAY 1 TASK 2 ANSWER], [DAY 2 TASK 1 ANSWER], ...]

We iterate through all the days we have loaded and compare their answers. We ouput whether the answer was right or wrong (and what we got if it was wrong). console.log is used for correct answers and console.error is used for wrong answers to give colour (if using a command line environment that allows for colour)