26 lines
616 B
JavaScript
26 lines
616 B
JavaScript
|
const { parse, run } = require('./_intcode');
|
||
|
|
|
||
|
|
const gravityAssist = (program, noun, verb) => {
|
||
|
|
const pClone = program.slice();
|
||
|
|
pClone[1] = noun;
|
||
|
|
pClone[2] = verb;
|
||
|
|
return run(pClone).memory[0];
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
'1': (input) => {
|
||
|
|
return gravityAssist(parse(input), 12n, 2n);
|
||
|
|
},
|
||
|
|
2: (input) => {
|
||
|
|
const program = parse(input);
|
||
|
|
for (let noun = 0n; noun <= 99n; noun++) {
|
||
|
|
for (let verb = 0n; verb <= 99n; verb++) {
|
||
|
|
if (gravityAssist(program, noun, verb) === 19690720n) {
|
||
|
|
return noun * 100n + verb;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
throw new Error('no solution');
|
||
|
|
},
|
||
|
|
};
|