35 lines
807 B
JavaScript
35 lines
807 B
JavaScript
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const { Glib } = require('../../lib');
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const parse = (input) => Glib.fromLines(input).toInts().array;
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module.exports = {
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'1': (input) => {
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const program = parse(input);
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let programCounter = 0n;
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let step = 0;
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while (programCounter < program.length) {
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const delta = program[programCounter];
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program[programCounter]++;
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programCounter += delta;
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step++;
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}
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return step;
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},
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'2': (input) => {
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const program = parse(input);
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let programCounter = 0n;
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let step = 0;
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while (programCounter < program.length) {
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const delta = program[programCounter];
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if (delta >= 3n) {
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program[programCounter]--;
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} else {
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program[programCounter]++;
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}
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programCounter += delta;
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step++;
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}
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return step;
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},
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};
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