81 lines
1.8 KiB
JavaScript
81 lines
1.8 KiB
JavaScript
import { promises as fsPromises } from "node:fs";
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async function asyncReadFile(filename) {
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try {
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const contents = await fsPromises.readFile(filename, "utf-8");
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const arr = contents.split(/\r?\n/);
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return arr;
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} catch (err) {
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console.error(err);
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}
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}
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const parseData = (rows) => {
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let isInRanges = true;
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let freshRanges = [];
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let freshCount = 0;
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rows.forEach((row) => {
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if (isInRanges) {
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if (row === "") {
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isInRanges = false;
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return;
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}
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if (row.includes("-")) {
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freshRanges.push(row);
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/*
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const [start, end] = row.split("-").map((val) => val * 1);
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for (let i = start; i <= end; i++) {
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if (!freshIngredients.includes(i)) freshIngredients.push(i);
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}
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*/
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return;
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}
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if (/^\d+$/.matches(row) && !freshIngredients.includes(row * 1)) {
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// freshIngredients.push(row * 1);
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freshRanges.push(row);
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return;
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}
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return;
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}
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let iNum = row * 1;
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let isFresh = freshRanges.some((range) => {
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if (!range.includes("-")) return range === `${iNum}`;
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const [start, end] = range.split(/-/).map((val) => val * 1);
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// console.log({ range, iNum, start, end });
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return iNum >= start && iNum <= end;
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});
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if (isFresh) freshCount++;
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console.log(`Ingredient ${row} is ${isFresh ? "fresh" : "spoiled"}.`);
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});
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return freshCount;
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};
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const testData = `
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3-5
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10-14
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16-20
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12-18
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1
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5
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8
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11
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17
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32
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`.trim();
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// const rows = testData.split("\n");
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const rows = await asyncReadFile("../input.txt");
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console.log(`Fresh ingredient count: ${parseData(rows)}`);
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