47 lines
957 B
TypeScript
47 lines
957 B
TypeScript
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namespace AdventOfCode2019_02_2
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{
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const DAY = 2;
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const PROBLEM = 2;
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export async function run()
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{
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let input = await AdventOfCode.getInput(DAY);
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let mem = input.split(",").map(p => parseInt(p));
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for(let noun=0; noun<=99;noun++)
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for(let verb=0; verb<=99;verb++)
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{
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if (exec(noun, verb, Object.assign([], mem)) == 19690720)
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{
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AdventOfCode.output(DAY, PROBLEM, (100*noun+verb).toString());
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return;
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}
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}
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AdventOfCode.output(DAY, PROBLEM, "error");
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}
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function exec(noun: number, verb: number, memory: number[])
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{
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let automata = memory;
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automata[1] = noun;
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automata[2] = verb;
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for(let i=0; i < automata.length; i+=4)
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{
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const op = automata[i+0];
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const arg1 = automata[automata[i+1]];
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const arg2 = automata[automata[i+2]];
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const dest = automata[i+3];
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if (op==1) automata[dest] = arg1 + arg2;
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else if (op==2) automata[dest] = arg1 * arg2;
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else break;
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}
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return automata[0];
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}
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}
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