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