25 lines
748 B
TypeScript
25 lines
748 B
TypeScript
import { sumBy } from '../../utils/array.ts';
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export function solveFirst(input: string): number {
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const rawShapes = input.split('\n\n');
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const regions = rawShapes
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.pop()!
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.split('\n')
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.map((row) => {
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const [size, count] = row.split(': ');
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const [wide, long] = size.split('x').map(Number);
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return { wide, long, count: count.split(' ').map(Number) };
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});
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const shapes = rawShapes.map((s) => s.split('\n').slice(1));
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const shapeWeight = shapes.map((s) =>
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sumBy(s, (r) => [...r.matchAll(/#/g)].length)
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);
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// works for the actual data, not for testing lmao
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const possible = regions.filter(
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(r) => r.long * r.wide >= sumBy(r.count, (e, i) => e * shapeWeight[i])
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);
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return possible.length;
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}
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