28 lines
727 B
JavaScript
28 lines
727 B
JavaScript
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import { readFileSync } from "fs";
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const input = readFileSync("instructions.txt", "utf-8");
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let xRegister = 1;
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let cycle = 0;
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let strengthSum = 0;
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input.split('\n').forEach(line => {
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const instruction = line.split(' ');
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switch(instruction[0]) {
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case "noop":
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cycle++;
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if((cycle + 20) % 40 === 0) strengthSum += (cycle * xRegister);
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break;
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case "addx":
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cycle++;
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if((cycle + 20) % 40 === 0) strengthSum += (cycle * xRegister);
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cycle++;
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if((cycle + 20) % 40 === 0) strengthSum += (cycle * xRegister);
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xRegister += parseInt(instruction[1]);
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break;
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}
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});
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console.log(strengthSum)
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