The avatar for @jwolondon
Jo Wood
Professor of Visual Analytics interested in design, geovisualization, visual storytelling and computational thinking.
Public
Ξ🎄Advent of Code 2020
Edited
Nov 11, 2022
Fork of Advent of Code: 2020 Day 16
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Ξ🎄Advent of Code 2020
Advent of Code: 2020 Day 1Advent of Code: 2020 Day 2Advent of Code: 2020 Day 3Advent of Code: 2020 Day 4
Advent of Code: 2020 Day 5
Advent of Code: 2020 Day 6Advent of Code: 2020 Day 7Advent of Code: 2020 Day 8Advent of Code: 2020 Day 9Advent of Code: 2020 Day 10Advent of Code: 2020 Day 11Advent of Code: 2020 Day 12Advent of Code: 2020 Day 13Advent of Code: 2020 Day 14Advent of Code: 2020 Day 15Advent of Code: 2020 Day 16Advent of Code: 2020 Day 17Advent of Code: 2020 Day 18Advent of Code: 2020 Day 19Advent of Code: 2020 Day 20Advent of Code: 2020 Day 21Advent of Code: 2020 Day 22Advent of Code: 2020 Day 23Advent of Code: 2020 Day 24Advent of Code: 2020 Day 25
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function toNumber(str) {
return parseInt(str.replaceAll(/[FL]/g, '0').replaceAll(/[BR]/g, '1'), 2);
}
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function ids(input) {
return input.split('\n').map(toNumber);
}
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function part1(input) {
return Math.max(...ids(input));
}
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function part2(input) {
const sortedIds = AOC.sort(ids(input));
for (let i = 1; i < sortedIds.length; i++) {
if (sortedIds[i] - sortedIds[i - 1] > 1) {
return sortedIds[i] - 1;
}
}
return "No gap found";
}
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