33 lines
651 B
TypeScript
33 lines
651 B
TypeScript
namespace AdventOfCode2019_01_2
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{
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const DAY = 1;
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const PROBLEM = 2;
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export async function run()
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{
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let input = await AdventOfCode.getInput(DAY);
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if (input == null) return;
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const fuel = input
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.split(new RegExp('\r?\n'))
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.filter(p => p.trim().length > 0)
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.map(p => parseInt(p))
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.map(mass =>
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{
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let fuel = Math.floor(mass / 3) - 2;
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let lastfuel = fuel;
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for (; ; )
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{
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let newfuel = Math.floor(lastfuel / 3) - 2;
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if (newfuel <= 0) break;
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fuel += newfuel;
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lastfuel = newfuel;
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}
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return fuel;
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})
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.reduce((a,b) => a+b);
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AdventOfCode.output(DAY, PROBLEM, fuel.toString());
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}
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}
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