joshua/advent-of-code-2020
1
0
Fork 0
mirror of https://github.com/seigler/advent-of-code-2020 synced 2025-07-27 00:06:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Day 15 (late, lol)

Browse source
This commit is contained in:
Joshua Seigler 2020-12-16 16:47:00 +00:00
parent d94ca60a36
commit bb39322b2f
4 changed files with 95 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

15
solutions/day11/solution.js
View file

@ -11,11 +11,11 @@ async function run () {
await solveForSecondStar(input)
}
function draw (input) {
for (const row of input) {
console.log(row.join(''))
}
}
// function draw (input) {
// for (const row of input) {
// console.log(row.join(''))
// }
// }
function neighbors (input, row, col) {
let total = 0
@ -48,20 +48,19 @@ function step (input) {
function stabilize (input) {
// console.log('\nInput\n--------')
// draw(input)
let rounds = 1; let old; let fresh = input
let old; let fresh = input
do {
old = fresh
fresh = step(old)
// console.log(`\nRound ${rounds}\n--------`)
// draw(fresh)
rounds++
} while (JSON.stringify(old) !== JSON.stringify(fresh))
return fresh
}
async function solveForFirstStar (input) {
const stable = stabilize(input)
const filledSeats = stable.flat(2).filter(x => x == '#').length
const filledSeats = stable.flat(2).filter(x => x === '#').length
report('Solution 1:', filledSeats)
}