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Solve D07P01
+33
+33
day07/part1.ts
+33
day07/part1.ts
···
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import { readFileSync } from "fs";
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const diagram = readFileSync("./input.txt", "utf8")
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.split(/\n/)
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.map((line) => line.split(""));
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let beams = new Set([{ r: 0, c: diagram[0].indexOf("S") }]);
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let totalSplitCount = 0;
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for (let i = 0; i < diagram.length - 1; i++) {
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const b = [...beams];
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const newBeams = new Set();
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for (let j = 0; j < b.length; j++) {
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if (diagram[b[j].r + 1][b[j].c] === "^") {
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if (b[j].c + 1 >= 0) {
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newBeams.add(JSON.stringify({ r: b[j].r + 1, c: b[j].c - 1 }));
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}
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if (b[j].c + 1 < diagram[i].length) {
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newBeams.add(JSON.stringify({ r: b[j].r + 1, c: b[j].c + 1 }));
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}
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totalSplitCount++;
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} else {
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newBeams.add(JSON.stringify({ r: b[j].r + 1, c: b[j].c }));
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}
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}
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beams = new Set([...newBeams].map((b) => JSON.parse(b)));
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}
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console.log(totalSplitCount);