adventofcode2021/02/code.js

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2021-12-02 05:15:21 +00:00
const fs = require('fs');
const inputArray = fs.readFileSync('input.txt').toString().split("\n");
// Part One
/*
let position = 0;
let depth = 0;
for(i in inputArray) {
const lineArray = inputArray[i].split(" ");
const direction = lineArray[0];
const distance = parseInt(lineArray[1]);
switch (direction) {
case "forward":
position = position + distance;
break;
case "up":
depth = depth - distance;
break;
case "down":
depth = depth + distance;
break;
}
}
const product = position * depth;
console.log(`${position} * ${depth} = ${product}`);
*/
// Part Two
let aim = 0;
let depth = 0;
let position = 0;
for(i in inputArray) {
const lineArray = inputArray[i].split(" ");
const direction = lineArray[0];
const distance = parseInt(lineArray[1]);
switch (direction) {
case "forward":
position = position + distance;
depth = depth + (aim * distance);
break;
case "up":
aim = aim - distance;
break;
case "down":
aim = aim + distance;
break;
}
}
const product = position * depth;
console.log(`${position} * ${depth} = ${product}`);