21 lines
593 B
JavaScript
21 lines
593 B
JavaScript
import * as R from "remeda";
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import { readFile } from '../03/part1.js';
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export const sample = readFile("2022", "04", "sample");
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export const puzzleInput = readFile("2022", "04", "input");
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const rangeLength = ([a,b]) => b-a+1;
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const isContainedBy = ( [a1,a2],[b1,b2] ) =>
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( (a1 >= b1) && (a2 <= b2) );
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export const solutionPart1 = R.createPipe(
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(text) => text.split("\n"),
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R.filter(R.identity),
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R.map( line => line.split(',').map( range => range.split('-').map( x => parseInt(x) ) ) ),
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R.map( R.sortBy( x => rangeLength(x) ) ),
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R.countBy( ([a,b]) => isContainedBy(a,b) )
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);
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