152 lines
3.5 KiB
Text
152 lines
3.5 KiB
Text
{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [],
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"source": [
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"import re"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Get puzzle input from input file\n",
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"\n",
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"puzzle_input = open(\"input\").read()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"metadata": {},
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"outputs": [],
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"source": [
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"def toggle(val: bool) -> bool:\n",
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" return not val\n",
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"\n",
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"def turn_off(val: bool) -> bool:\n",
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" return False\n",
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"\n",
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"def turn_on(val: bool) -> bool:\n",
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" return True"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Part 1 #"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"400410\n"
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]
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}
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],
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"source": [
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"lights = [[False]*1000 for i in range(1000)]\n",
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"for command in puzzle_input.split(\"\\n\"):\n",
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" if re.search(\"toggle\", command):\n",
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" method = toggle\n",
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" elif re.search(\"on\", command):\n",
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" method = turn_on\n",
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" else:\n",
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" method = turn_off\n",
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" \n",
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" points = re.search(r\"(\\d+,\\d+) through (\\d+,\\d+)\", command)\n",
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" point_a = tuple(map(int, points.group(1).split(\",\")))\n",
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" point_b = tuple(map(int, points.group(2).split(\",\")))\n",
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" \n",
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" for a in range(point_a[0], point_b[0]+1):\n",
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" for b in range(point_a[1], point_b[1]+1):\n",
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" lights[a][b] = method(lights[a][b])\n",
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"\n",
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"print(list(item for sublist in lights for item in sublist).count(True))"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Part 2 #"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 5,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"15343601\n"
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]
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}
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],
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"source": [
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"def toggle(val: bool) -> bool:\n",
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" return val+2\n",
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"\n",
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"def turn_off(val: bool) -> bool:\n",
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" return max(val-1, 0)\n",
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"\n",
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"def turn_on(val: bool) -> bool:\n",
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" return val+1\n",
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"\n",
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"lights = [[0]*1000 for i in range(1000)]\n",
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"for command in puzzle_input.split(\"\\n\"):\n",
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" if re.search(\"toggle\", command):\n",
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" method = toggle\n",
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" elif re.search(\"on\", command):\n",
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" method = turn_on\n",
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" else:\n",
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" method = turn_off\n",
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" \n",
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" points = re.search(r\"(\\d+,\\d+) through (\\d+,\\d+)\", command)\n",
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" point_a = tuple(map(int, points.group(1).split(\",\")))\n",
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" point_b = tuple(map(int, points.group(2).split(\",\")))\n",
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" \n",
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" for a in range(point_a[0], point_b[0]+1):\n",
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" for b in range(point_a[1], point_b[1]+1):\n",
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" lights[a][b] = method(lights[a][b])\n",
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"\n",
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"print(sum(list(item for sublist in lights for item in sublist)))"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.6"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}
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