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-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Advent of Code 2022\n",
-    "#### Day 1: Calorie Counting\n",
-    "\n",
-    "Elves carry various amounts of food with various caloric contents.\n",
-    "\n",
-    "**Part 1.** How many calories is the elf with the most calories of food carrying?\n",
-    "\n",
-    "**Part 2.** How many calories are the three elves with the most calories of food carrying?"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "(require racket\n",
-    "         advent-of-code\n",
-    "         threading)"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "##### Part 1\n",
-    "\n",
-    "The data file is a list of integers, one on each line, with an empty line separating the inventory of each elf.\n",
-    "\n",
-    "1. Fetch the input file,\n",
-    "2. split it on double newlines to find each elf's inventory,\n",
-    "3. split each inventory on single newlines,\n",
-    "4. convert each inventory member to a number,\n",
-    "5. sum up each list, and\n",
-    "6. find the maximum one. \n",
-    "\n",
-    "This is straightforward to do with threading/piping:"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<code>70374</code>"
-      ],
-      "text/plain": [
-       "70374"
-      ]
-     },
-     "execution_count": 2,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "(define calorie-data (fetch-aoc-input (find-session) 2022 1))\n",
-    "\n",
-    "(~>> calorie-data\n",
-    "    (string-split _ \"\\n\\n\")\n",
-    "    (map (λ~>> string-split (map string->number) (apply +)))\n",
-    "    (apply max))\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "##### Part 2\n",
-    "\n",
-    "Similarly, to find the top three calorie holders,\n",
-    "\n",
-    "1. fetch the input file,\n",
-    "2. split it on double newlines,\n",
-    "3. split each list member on single newlines,\n",
-    "4. convert each sublist member to a number,\n",
-    "5. sum up each list, \n",
-    "6. sort the list from high to low,\n",
-    "7. take the first three members,\n",
-    "8. and sum them."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<code>204610</code>"
-      ],
-      "text/plain": [
-       "204610"
-      ]
-     },
-     "execution_count": 3,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "(~>> calorie-data\n",
-    "     (string-split _ \"\\n\\n\")\n",
-    "     (map (λ~>> string-split (map string->number) (apply +)))\n",
-    "     (sort _ >)\n",
-    "     (take _ 3)\n",
-    "     (apply +))\n"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Racket (trusted)",
-   "language": "racket",
-   "name": "racket-trusted"
-  },
-  "language_info": {
-   "codemirror_mode": "scheme",
-   "file_extension": ".rkt",
-   "mimetype": "text/x-racket",
-   "name": "racket",
-   "pygments_lexer": "racket",
-   "version": "8.7"
-  },
-  "orig_nbformat": 4
- },
- "nbformat": 4,
- "nbformat_minor": 2
-}