commit b8d0e56a6c965185f47a074ea3000b2b07e8c846
Author: Fearless <>
Date: Mon Dec 5 00:00:21 2022 -0500
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+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
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+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Copyright (C)
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/aoc-utils.sh b/aoc-utils.sh
new file mode 100644
index 0000000..5ff003c
--- /dev/null
+++ b/aoc-utils.sh
@@ -0,0 +1,29 @@
+# Copyright (C) 2022
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+aoc_expect() {
+ local solution="$1"
+ local input="$2"
+ local expected="$3"
+ local result=$(${solution} ${input})
+ if [[ ${result} != ${expected} ]]; then
+ echo "${solution} test failed"
+ echo "expected: ${expected}"
+ echo "result: ${result}"
+ return 1
+ else
+ echo "${solution} test passed"
+ fi
+}
diff --git a/aoc.el b/aoc.el
new file mode 100644
index 0000000..e04637e
--- /dev/null
+++ b/aoc.el
@@ -0,0 +1,31 @@
+;; -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see .
+
+(defun aoc-read-file (file)
+ (with-temp-buffer
+ (insert-file-contents-literally file nil)
+ (decode-coding-string (buffer-substring-no-properties (point-min) (point-max)) 'utf-8)))
+
+(defun aoc-read-file-lines (file &optional omit-nulls)
+ (string-lines (aoc-read-file file) omit-nulls))
+
+(defmacro aoc-debug (expr)
+ `(let ((e ,expr))
+ (debug e)
+ e))
+
+(provide 'aoc)
diff --git a/day-1/awk/part-1.awk b/day-1/awk/part-1.awk
new file mode 100755
index 0000000..03f4eed
--- /dev/null
+++ b/day-1/awk/part-1.awk
@@ -0,0 +1,32 @@
+#!/usr/bin/env -S gawk --file
+
+# Copyright (C) 2022
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+BEGIN {
+ FS = "\n"
+ RS = ""
+}
+
+{
+ for (x = 1; x <= NF; x++) {
+ calories[NR] += $x
+ }
+}
+
+END {
+ n = asort(calories)
+ print calories[n]
+}
diff --git a/day-1/awk/part-2.awk b/day-1/awk/part-2.awk
new file mode 100755
index 0000000..591123c
--- /dev/null
+++ b/day-1/awk/part-2.awk
@@ -0,0 +1,32 @@
+#!/usr/bin/env -S gawk --file
+
+# Copyright (C) 2022
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+BEGIN {
+ FS = "\n"
+ RS = ""
+}
+
+{
+ for (x = 1; x <= NF; x++) {
+ calories[NR] += $x
+ }
+}
+
+END {
+ n = asort(calories)
+ print calories[n] + calories[n - 1] + calories[n - 2]
+}
diff --git a/day-1/awk/test.sh b/day-1/awk/test.sh
new file mode 100755
index 0000000..d2d9c27
--- /dev/null
+++ b/day-1/awk/test.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# Copyright (C) 2022 notroot
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+set -e
+
+PATH="$(pwd):${PATH}"
+
+source ../../aoc-utils.sh
+
+aoc_expect part-1.awk ../test-input.txt 24000
+aoc_expect part-2.awk ../test-input.txt 45000
+
+aoc_expect part-1.awk ../input.txt 68292
+aoc_expect part-2.awk ../input.txt 203203
diff --git a/day-1/elisp/solution.el b/day-1/elisp/solution.el
new file mode 100755
index 0000000..2b416c5
--- /dev/null
+++ b/day-1/elisp/solution.el
@@ -0,0 +1,66 @@
+#!/usr/bin/env -S emacs --script
+
+;; -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022 notroot
+
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see .
+
+(add-to-list 'load-path "../../")
+
+(require 'ert)
+(require 'cl-lib)
+(require 'aoc)
+
+(defvar input-file "../input.txt")
+
+(defvar test-input-file "../test-input.txt")
+
+(defun eat (data)
+ (let ((lines (string-lines data)))
+ (cl-loop for line in lines
+ if (not (zerop (length line)))
+ collect (string-to-number line) into group
+ else
+ collect group into groups
+ and do (setq group nil)
+ finally (return (if group
+ (append groups (list group))
+ groups)))))
+
+(defun sum-calories-per-group (groups)
+ (let ((sums (seq-map (lambda (g)
+ (apply '+ g))
+ groups)))
+ (seq-sort '>= sums)))
+
+(princ (eat (aoc-read-file test-input-file)) 'external-debugging-output)
+
+(ert-deftest part-1-test ()
+ (let ((calories (sum-calories-per-group (eat (aoc-read-file test-input-file)))))
+ (should (equal 24000 (nth 0 calories)))))
+
+(ert-deftest part-1 ()
+ (let ((calories (sum-calories-per-group (eat (aoc-read-file input-file)))))
+ (should (equal 68292 (nth 0 calories)))))
+
+(ert-deftest part-2-test ()
+ (let ((calories (sum-calories-per-group (eat (aoc-read-file test-input-file)))))
+ (should (equal 45000 (apply '+ (seq-take calories 3))))))
+
+(ert-deftest part-2 ()
+ (let ((calories (sum-calories-per-group (eat (aoc-read-file input-file)))))
+ (should (equal 203203 (apply '+ (seq-take calories 3))))))
+
+(ert-run-tests-batch-and-exit)
diff --git a/day-1/input.txt b/day-1/input.txt
new file mode 100644
index 0000000..d6fca09
--- /dev/null
+++ b/day-1/input.txt
@@ -0,0 +1,2237 @@
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diff --git a/day-1/test-input.txt b/day-1/test-input.txt
new file mode 100644
index 0000000..2094f91
--- /dev/null
+++ b/day-1/test-input.txt
@@ -0,0 +1,14 @@
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