mirror of
https://github.com/seigler/advent-of-code-2020
synced 2025-07-27 00:06:09 +00:00
Day 11, part one
This commit is contained in:
repl.it user
parent
6aaf867952
commit
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4 changed files with 215 additions and 0 deletions
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@ -13,6 +13,7 @@
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"author": "John Beech",
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"author": "John Beech",
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"license": "ISC",
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"license": "ISC",
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"dependencies": {
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"dependencies": {
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"deep-equal": "^2.0.5",
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"express": "^4.16.4",
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"express": "^4.16.4",
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"pre-push": "*",
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"pre-push": "*",
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"promise-path": "*",
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"promise-path": "*",
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98
solutions/day11/input.txt
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98
solutions/day11/input.txt
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LLLLLLLLL.LLLL.LLLLL.LLLLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLL
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LLLLLLLLL.LLLL.LLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLL
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LLLLLLLLL.LLLL.LLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLL
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LLLLLLLL..LLLL.LLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLL.L
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LLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLL
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LLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLL
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......L.LL.....L.L..L.....L.L..LL.L.LL.L...L..L..............L..L......LL.....LL...L.L.....
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LLLLLLLLL.LLLL.LLLLLLLLLLLL.LLLLLLLLLLLLL..LLLLLLLLLLLL.LLLLLLLL.LLLLLLLL..LLLLLLL.LLLLLLLL
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LLLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLL
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LLLLLLLLL.LLLL.LLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLL
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LLLLLLLLL..LLL.LLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
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...L..L....LL.L.L......LLLLL.....LL....L.......L.LL.L.L.L..LL...LLLLLL.LL........L.L.......
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LLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLL
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.LLLLLLLL.LLLL..LLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLLLL
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LLLLLLLLL.LLLL.LLLLL.LLLLLL.LLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLL
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......L.L..L.L...LLL.....L.L..L......LL...L..L..L.L......L.L..L....LLLL....L..L....L.L..L.L
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.LLL......L........L.....L..LL.L..L..L.L....L.L............L...........LLL..L..LL....LL..L.
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LLLLLLLLLLLLLL.LLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLL
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LLLLLLLLLLLLLL..LLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.LL.LLLL.LLLLLLLL
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.L..LLL.L....LL.L..L..LL..L.LL.L......L........LLL.....L..LL...L.LL.LL.....L....L..LL.L....
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LLLLLLLLLLL.LL.LLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLLLLLLLLL
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LLLLLLLLL.LLLLLLLLLL.LLLLLLLLLLLLLLL.LLLL.LLLLLLLLLLLLL.LLLLLLL..LLLLLLLLL.LLLLLLLLLLLLLLLL
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L..L.LL....L..LL.L.....L.....L...L..L..L...L....L.L.L..LL.L......L...L......L....L.....L.L.
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73
solutions/day11/solution.js
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73
solutions/day11/solution.js
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const path = require('path')
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const { read, position } = require('promise-path')
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const fromHere = position(__dirname)
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const report = (...messages) => console.log(`[${require(fromHere('../../package.json')).logName} / ${__dirname.split(path.sep).pop()}]`, ...messages)
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async function run () {
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let input = (await read(fromHere('input.txt'), 'utf8')).trim().split('\n')
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input = input.map(line => line.split(''))
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await solveForFirstStar(input)
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await solveForSecondStar(input)
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}
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function draw (input) {
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for (const row of input) {
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console.log(row.join(''))
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}
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}
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function neighbors (input, row, col) {
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let total = 0
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if (input[row - 1]) {
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if (input[row - 1][col - 1] === '#') total++
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if (input[row - 1][col] === '#') total++
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if (input[row - 1][col + 1] === '#') total++
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}
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if (input[row][col - 1] === '#') total++
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if (input[row][col + 1] === '#') total++
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if (input[row + 1]) {
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if (input[row + 1][col - 1] === '#') total++
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if (input[row + 1][col] === '#') total++
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if (input[row + 1][col + 1] === '#') total++
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}
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return total
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}
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function step (input) {
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const next = JSON.parse(JSON.stringify(input))
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input.forEach((row, y, rows) => {
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row.forEach((seat, x, seats) => {
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if (seat === 'L' && neighbors(input, y, x) === 0) { next[y][x] = '#' }
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if (seat === '#' && neighbors(input, y, x) >= 4) { next[y][x] = 'L' }
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})
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})
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return next
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}
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function stabilize(input) {
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// console.log('\nInput\n--------')
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// draw(input)
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let rounds = 1; let old; let fresh = input
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do {
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old = fresh
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fresh = step(old)
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// console.log(`\nRound ${rounds}\n--------`)
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// draw(fresh)
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rounds++
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} while (JSON.stringify(old) !== JSON.stringify(fresh))
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return fresh
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}
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async function solveForFirstStar (input) {
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const stable = stabilize(input)
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const filledSeats = stable.flat(2).filter(x => x=='#').length
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report('Solution 1:', filledSeats)
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}
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async function solveForSecondStar (input) {
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const solution = 'UNSOLVED'
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report('Solution 2:', solution)
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}
|
||||||
|
|
||||||
|
run()
|
||||||
43
solutions/day11/viewer.html
Normal file
43
solutions/day11/viewer.html
Normal file
|
|
@ -0,0 +1,43 @@
|
||||||
|
<!DOCTYPE html>
|
||||||
|
<html>
|
||||||
|
<head>
|
||||||
|
<title>Solution Viewer</title>
|
||||||
|
<style>
|
||||||
|
html, body { font-family: sans-serif; }
|
||||||
|
pre { border-radius: 0.5em; padding: 0.5em; background: #eee; }
|
||||||
|
</style>
|
||||||
|
<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
|
||||||
|
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<div id="viewer">
|
||||||
|
<h1>Solution Viewer ({{ solutionTitle }})</h1>
|
||||||
|
<p>For interesting problems; this page can be used as a dynamic viewer.</p>
|
||||||
|
<h3><a href="./input.txt">input.txt</a></h3>
|
||||||
|
<pre><code>{{ inputText }}</code></pre>
|
||||||
|
<h3><a href="./solution.js">solution.js</a></h3>
|
||||||
|
<pre><code>{{ solutionText }}</code></pre>
|
||||||
|
</div>
|
||||||
|
<script>
|
||||||
|
const app = new Vue({
|
||||||
|
el: '#viewer',
|
||||||
|
data: () => {
|
||||||
|
return {
|
||||||
|
solutionText: '[Loading]',
|
||||||
|
inputText: '[Loading]'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
computed: {
|
||||||
|
solutionTitle() {
|
||||||
|
const parts = (document.location + '').split('/')
|
||||||
|
return parts.reverse()[1]
|
||||||
|
}
|
||||||
|
},
|
||||||
|
async mounted () {
|
||||||
|
this.solutionText = (await axios.get('./solution.js')).data
|
||||||
|
this.inputText = (await axios.get('./input.txt')).data
|
||||||
|
}
|
||||||
|
})
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
Loading…
Add table
Add a link
Reference in a new issue