diff options
Diffstat (limited to 'day11')
| -rw-r--r-- | day11/data.js | 103 | ||||
| -rw-r--r-- | day11/day11-1.js | 43 | ||||
| -rw-r--r-- | day11/day11-2.js | 50 |
3 files changed, 196 insertions, 0 deletions
diff --git a/day11/data.js b/day11/data.js new file mode 100644 index 0000000..e9e8320 --- /dev/null +++ b/day11/data.js @@ -0,0 +1,103 @@ +const data=` +LLLLLLL.LLLLLLLLLLLLLLL.LLL.LLLL.LLLLLLL.L.LLLLLLL.LLLLLL.LLLLLLLL.LLLLL..LLLLLLLLLLLLLLLLLL +LLLLLLL.LLLLLL.LLLL.LLL.LLLLLLLLLL.LLLLLLL.LLLLL.L.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLL +.LLLLLLLLLLLLLLL.LLLLLL.LLLLLL.LLLLLLLL.LL.LLLLLLL.LLL.LL.LLLLLLLLLLL.LLL..LLLLLLLL.LLLLLLLL +LLLLLLLLLLLLLLL..LLLLLL.LLLLLLLLLLLLL.LLLL.LLLLLLLLLLLL.L.LLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLL +LLLLL.L.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLL.LLLLLLL.LLL..LLL.LLLLLL.LLLLLL.LLLL.LLLL.L.LLLLLL +LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.L.LL.LLLL.LLLLLL..LLLLLL.LLLLLLLL..LLLLL.LLLLLLLL..LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL.LLLLL.L.LLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +.LLLLLL..LLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.L.LLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLL.LLL +..LLLL......L.L..L..L..L.....LL..L.....L.....LLL.L.L.LL...L.....L...LL..L......L...LL......L +LL.LLLL.LLLLLLLLL.LLLLL.LLLLL.LLLLLLL.LLLL.LLLLLL..LLLLLL.LLLL.LLL.LLLLLLLLLLLLLLLLLLLLLLLLL +LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLL..LLLLLLLLLLLLLLLLLLLLLLLL +LLLLLLLLLLLLLLLL.LLLLLL.LLLLL.LLLLLLL.LLLL.LL.LLLLLL.LLLL.LLLLLLLL.LLLLLL..LL.LLLLL.LLLL..L. +LLLLLLLLLLLLLL.LL.LLLLL.LLLLLLLLLLLLL.L.LL.LLLLLLL.L.LLLL.LLLLLLLL.LLLLLL.L.LLLLLLLLLLLLLLLL +LLLLLLL.L.LLLLLL.LLLLLLLLL.LL.LLLLL.LLLLL..L.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL.LL +LLLLLLLLLLLLLLLL.LLLLLLLLL.LL.LLLLLLL.LLLL.LLLLLLL.LLLLLLLLLLLLLL..LLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLL..LLLLLLLLLLLL.LLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LL.LLLLLLLLLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLL.LLLLLLL.LLLLLL.L.LLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLLLLLLLLLLL.LLLLL..LLLLLLLLLL.LLL.LLLLLLLLLLLLLL.LLL.LLLLLLLLL.LLLLL.L.LLLL.LLLLLLLLLLL +.L......L.LL.L...L.....L..L..L...LL.L.......L.............LL.L......LL.L...LL.L...L.....LL.. +LL.LLLL.LLLLLLLLLLLLLLL.LLLLL.LLLLLLLLL.LLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +LLLLL.L.L.LLLLLLLLL.LLLLLLLLLLLLL.LL.LLLLLLLLLLLLL.LLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLL +LLLL.LL.LL.LLLLL.LLLL.L.LLLLL.LLLLLLLLLL.LLLLLLLLL..L.LLLLLLLLLLL.L.LLLLL.LLLLLLLLLLLLLLLL.L +LLLLLLL.LLLLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLL.LLLLLL.L +.......LL...L.......LL...L.......LLL......L..L...L...L.....LL..L.L......L.LL.....LL.....L... +LLLLLLLLLLLLLLLL.LLLLLL.LLLLL.LLLL.LL.LLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLL.LLLLL +LLLLLLL.LLLLLLLLLLLLLL..LLLLLLLLLLLLL.LLLL.LL.LLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLLLLL.LLLLLL.L.LLL.L.LLL.LLL.LLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLL +L.LLLLLLL.LLLLLL.LLLLLLL.LLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLLL..LLLLLL.LLLLLLLLL.LLLLLLLL +LL.LLLL.LLLLLLLL.LLLLLL.LLLLL.LL.LLLLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLL.LLLLLL.LL.LLLLLLLL +LLLLL.L.LLLLLLLL.LLLLLLLLLL.L.LLL.LLL.LLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL.LLLLL.LLLLL.L.LLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLL.LL.LLL.LLLL +L..LL.........L....L....L..L.LL.....LL.L.LL...L........L...L...L...L.LLL..LL..LLLLL.L....... +LLLLLLL.LLLLLLLLLLLL.LL.LLLLL.LLLLLLL.LLLLLLLLLLLLLLLLL.L.LLLLLLLL.LLLLLL.LLLLLLL.L..LLLLLLL +LLLLLLLL.LLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLL.L.LL.LLLLLLLL +.LLLLLL.LLLLLL.L.LLLLLL.LLLLL.LLLLLLL.L.LL.LLLLLLLLLLL.LLLLLLLLLLL.LLLLLL.LLLLLLLL..LLLLLLLL +LL.LLLL..LLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.LLLLLL..LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +L..LL..........L......L..L....L..L.L.LL.LLL..L.L.L.LLLL...L..L..L.L.L..LLLL.L.L...L..LL..... +LLLLLLLLLLLLLLLLLLLLLLL.LL.LLLLLLLLLL.LL.L.LLLLLLL.LLLLLL.LLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLLLLLLLL.LLLL.LL.LLLLL.LL.LLL.LLLLLLLLLLLLLLL.LLL.LLLLLLLLLLLLL.LLLLLL. +LLLLLL.LLLLLLLLL.LLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLL.LLLLLLLLLL +LLLLLLLLLLL.LLLL.LLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLL.LLLL.LLL.LLLLLL.LLL.L.LLLLLLLLL.LL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLL.LLL.L.LLLLLL +LLLLLLLLLLLLL.LL.LLLLLL.LLL.L.LLLLLLL.LLLLLLLLLLLL.LLLLLL.LLLL.LLL.LLLLLL.LLLLLL.LLLLLLLLLLL +.L.LLLL.L.LLL.L....L...LL.L.L..LL.L.LLLL.L..L..L.L.LL...LL..L.L.L...LL.L.......LL..LLL...... +LLLLL.L..LLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLL.LL.LLLL.LLLLLL.LLLLLL.L.LLLLLL.LLLLLLLLLLLL.LLLLL +LLLLLLLLLLLLLLLL.LLLLLLLLLLLL.LLLLLLL..LLL.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLL.L.LLLLLL +LLLLLLL.LLLLLLLL.LLLL.L.LLL.LLLLLLLLL.LLLL.LLLLLLL.L..LLL.LLLLLLL..LL.LLL.LLLLLLLLL.LLL.LLL. +LLLLLLL.LLLLLLLL.LLLLLL.L.LLLLLLLLLL..LLLLLLLLLLLL.L.LLLL.LLLLLLLL.LLLLLL.L.LLLL.LL.LLLL.LLL +LLLL.LLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLL.LLLLLLL.LLLLLL.LL.LLLLL.LLL.LL.LLLLLLLLLLLLLLLLLL +LL.LLLLLLLLLLLLL.LLLLLLLLLLLL.LLL.LLL.LLLL.LLLLLLLLLLLL.L.LLLLL.LL.LLLLLL.L.L.LLLLLLLLLLLLLL +LLLLLL.LLLLLL.LL.LLLLLLLLL.LLLLLLLLLL.LLLL.LL.LLLLLLLLLLL.LL.LLLLL.LLLLL.LLLLLLLLLL.LLLLLLLL +.LLL.......LL.LL....L..L.....LL.....L..L...LLL....L...L..LLL...L............LLLL.LL.......L. +LLLLL.L.LLLLLLLLLLLLLLLLLLLLL.L.LLLLLLLLLLLLLL.LLLLLLLLLL.LLLLLLLLLLL.LLLLLLLLLL.LL.LLLLLLLL +LLLLLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLL.LLLLLLLLLLLLLLLLLLLL +L.LLLLL...LLLLLLLLLLLLL.LLLLLLLLLLLLL..LLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLLLL +LLLLLLLLLLLLLLLL.L.L.LLLLLLLL.LLLLLLL.LLLL.LLLLL.L.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLLLL +LLL.LLLLLLLLLLLLLLLLLLL.LLL.LLLLLLLLLL.LLL.LLLLLL..LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLLLL +L..L.LL...LLL.L...LLL....L.L.L.L.....LL..........LL...L.L.L.LLLL....L.....L....LLL......LLLL +LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLL.L.LLLLLL.LLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLL..LLLLLLLLLLLLLL.LLLLLLLLLLLLLL.LLL.LLLLLLL.LLLLLLLLLLLLLLLLLL.LLL.L.L.LL.LLLLLLLLLLL +LLLLLLLLLLLLLLLL.LLLL.L.LLLLL.LLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.L.LLLLLLLL.LLLLLLLLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLL.LLLLLL.L +LLLLLLLL.LLLLLLL.LLLLLLLLLLLL.LLLLLLL.LLLL.LLL.LLL.LLLLLL.LLLLLLLL.LLLLLL.LLL.LLLLL.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL..LLLLLLLLLLLL.LLLL.L..L.LL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.L.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLLLLL..LLLLLLLLLLLL.LLLLLLLLLL.LLLL.LLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLL.L.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLL +LLLLLL..LLLLLLLL.LLLLLLLLLLLL.LLLLLL..LLLL.LLLL.LL.L.LLLL.LLLL.LLL.LLLLLL.LLLLLLLLLLLL.LLLLL +........LL..LL..L............L..L.L..L....L.......LL...L......L....LLL..L.L......LL..LL.L.L. +LLLLLLL.LLLLLLLL.LLLLLLLLLLLL.LLLLLL..LLLL.LLLLLLL.LLL.LL.LLLLLLLL.LLLLLL.LLLLLLLLL.LLL.LLLL +LLLLLL.LLLLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.LLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +LLL.LLL.LLLLLLL.LLLLLLL.LLLLL.LLLLLLLLLLL..LLL.LLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLL.L.LLLLL.LL.LLLL.LLLL.L.LLLLL.LL.LLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL +LLLL.LLLLLLLLLLLLLLLLLL.LLLLLLLLLLLL..LLLL.LLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLLL.L.LLLLLLLL +LLLLLLL.LLLLL.LL.LLL.LL.LLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLLLL.LLLL.LL.LLLLL +LLLLLLLLLL.LLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLL.LLLLLLLL.LL.LLLLLLLLLLLLL.LLLLLLLL +LLLL.L.L...L.......L..LL.LL.LL....LL..L.L.L......L...LLL..L.L.L...LLL...L.....L.LLLL........ +.LLLLLL.L.LLLLLL.LLLLLLLLLLL..LLLLLLL.LLLL.LLLLLLL.LLLLLL.LLLLL.LLLLLLLLL.LLLL.LLLL.LLLLLLLL +LLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLLL. +LLLLLLL.L.LLLLLLLLLLLLL.LLLLL.LLL.LLL.LLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLL.LL.L.LLLLLLLLLLLLLLLL +LLLLLLL.LLLLL.LL.LLLLLL.LLLLLLLLLLLLL.LLLL.LLLLLLLLLLL.LL.LLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLLLL +L.LLLLL.LLLLL.LLLLLLLLL.LLLLL..LLLLLL.LLLL.LLLLLLL.L.LLLL.LLLLLLLL.LLLLLL.LLLLLLLLL.LLL.LL.. +..L...L.L.......LL.LLL.LLL..L....L..L.L.L..L.L........L...L.LL.L.........LLLLL.L.LL.L...L.LL +LLLLLLL.LLLLL.LL.LLLLLL.LLLL..LLLLL.L.LL.LLLLLL.LL.LLLLLLLLLLLLLLL.LLL.LLLLLLLLLLLLLLLLLLLLL +LLLLLLL.L.LLLLLLLLLLLLL.LLLLL.LL.LLLLLLL.LLLLLLLLL.LLL.LL.LLLLLLLL.LLL.LL.LLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLL..L.LLLLLLLLLLLL.LLLLLL.L.LLLLLL.LLLLLL.LLLLLLLLL.LLL.LLLL +.LLLLLL.LL.LL.LLLLLL.L..LLLLLLL.LLLLL.LLLL.LL.LL.L.LL.L.L.LLLLLLLL.LLLLLLLLLLLLLLLL.LLLLLLLL +LLLLLLLLLLLLLLLLLLLLLLL..LLLLLLLL.LLL.LLLLLLLLLLLLLLLLLL..LLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL.LLLLL.LLLLLLLLLLLL.LLLLLLL.LL.LL..LLLLLLLL.LLLLLLLLLLLLLLLL.LLL..LLL +LLLLLLLLL.LL.LLL.LLLLLLLLLLLLLLLLLLLL.LLL..LLLLLLLLLLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLL.LLLL.LLLLLLLLLLL.LLLL.LLLLLLLLLL.L.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL +LLL......LL...L...L..LL..L..L......L...L.L..L.........L.LL.LL..L..L.L......L..L........L..L. +LL.LLLLLLLLLLLLL.LL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLL +LLLLLLLLLLLLLL.L.LLLLLLLLLLLL.LL.LLLL..LLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLL.LL.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLL.LLLLL.LLLLLLL.LLLLLLLLLL.L.LLLLLL.LLLLLLLL..LLLLL.LLLLLLLLL.LLLLLLLL +LLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLL.LLLLLLLLLLL.LLL.LLLLLL.LL.LLLLLL.LLLLLLLL +LLLLLLLLLLLLLLLL.LLLLLL.LLL.L.LLLLLLL.LLLLLLLLLLLL.LLLLLLLLL.LLL.L.LLLLLL.LLLLLLLLLLLLLLLLLL +LLLLLLL.LLLLL.LL.LL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL..LLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLL +LLL.LLLLLLLLLLLL.LLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLL.LLL.LLLLLLLLLLL.LLLLLLLLL.LLLLLLLL +` + +module.exports = data diff --git a/day11/day11-1.js b/day11/day11-1.js new file mode 100644 index 0000000..7d495b6 --- /dev/null +++ b/day11/day11-1.js @@ -0,0 +1,43 @@ +const data = require('./data') +const rows = data.split(/\n/g).filter(r => r) +const rowLn = rows[0].length +const string = rows.join('') + +const checkSeat = (i, s) => { + const around = [ + i >= rowLn ? s[i-rowLn] : '.', // top + i >= rowLn && (i+1)%rowLn !== 0 ? s[i+1-rowLn] : '.', // top-right + (i+1)%rowLn !== 0 ? s[i+1] : '.', // right + i < s.length -rowLn && (i+1)%rowLn !== 0 ? s[i+1+rowLn] : '.', // bottom-right + i < s.length -rowLn ? s[i+rowLn] : '.', // bottom + i%rowLn !== 0 && i < s.length -rowLn ? s[i-1+rowLn] : '.', // bottom-left + i%rowLn !== 0 ? s[i-1] : '.', // left + i > rowLn && i%rowLn > 0 ? s[i-1-rowLn] : '.', // top-left + ] + + const taken = around.filter(s => s === '#').length + const free = around.filter(s => s === 'L').length + + return [taken, free] +} + +const round = (str) => { + const newArray = [] + str.split('').forEach((s, i) => { + const [taken, free] = checkSeat(i, str) + if (s === 'L' && taken === 0) { + newArray[i] = '#' + } else if (s === '#' && taken >= 4) { + newArray[i] = 'L' + } else { + newArray[i] = str[i] + } + }) + + const newString = newArray.join('') + return newString === str + ? newString.split('').filter(s => s === '#').length + : round(newString) +} + +console.log(round(string)) diff --git a/day11/day11-2.js b/day11/day11-2.js new file mode 100644 index 0000000..5d72f0f --- /dev/null +++ b/day11/day11-2.js @@ -0,0 +1,50 @@ +const data = require('./data') +const rows = data.split(/\n/g).filter(r => r) +const rowsLn = rows[0].length +const string = rows.join('') + +const checkSeat = (i, s) => { + const lookup = (index, posCheck, next) => { + const nextIndex = next(index) + return posCheck(index) + ? (s[nextIndex] !== '.' ? s[nextIndex] : lookup(nextIndex, posCheck, next)) + : '.' + } + + const around = [ + lookup(i, i => (i >= rowsLn), i => (i-rowsLn)), // Top + lookup(i, i => (i >= rowsLn && (i+1)%rowsLn !== 0), i => (i+1-rowsLn)), // T-R + lookup(i, i => ((i+1)%rowsLn !== 0), i => (i+1)), // Rigth + lookup(i, i => (i < s.length - rowsLn && (i+1)%rowsLn !== 0), i => (i+1+rowsLn)), // B-R + lookup(i, i => (i < s.length - rowsLn), i => (i+rowsLn)), // Bottom + lookup(i, i => (i%rowsLn !== 0 && i < s.length -rowsLn), i => (i-1+rowsLn)), // B-L + lookup(i, i => (i%rowsLn !== 0), i => (i-1)), // Left + lookup(i, i => (i > rowsLn && i%rowsLn > 0), i => (i-1-rowsLn)), // T-L + ] + + const taken = around.filter(s => s === '#').length + const free = around.filter(s => s === 'L').length + + return [taken, free] +} + +const round = (str) => { + const newArray = [] + str.split('').forEach((s, i) => { + const [taken, free] = checkSeat(i, str) + if (s === 'L' && taken === 0) { + newArray[i] = '#' + } else if (s === '#' && taken >= 5) { + newArray[i] = 'L' + } else { + newArray[i] = str[i] + } + }) + + const newString = newArray.join('') + return newString === str + ? newString.split('').filter(s => s === '#').length + : round(newString) +} + +console.log(round(string)) |