Advent of Code 2022

AoC22.md

• Day 1
• Day 2
• Day 3
• Day 4
• Day 5
• Day 6
• Day 7
• Day 8
• Day 9
• Day 10
• Day 11
• Day 12
• Day 13
• Day 14
• Day 15
• Day 16
• Day 17
• Day 18
• Day 19
• Day 20
• Day 21
• Day 22
• Day 23
• Day 24
• Day 25

day1.js

const input = `
1000
2000
3000

4000

5000
6000

7000
8000
9000

10000
`

const values = input.split('\n\n').map(values => values.split('\n').filter(value => !!value)) //?
const summedValues = values.map(values => values.reduce((sum, value) => sum + parseInt(value), 0)) //?
const sortedValues = summedValues.sort((a, b) => b - a) 
const largestValue = sortedValues.slice(0, 1)
console.log('Calories of top elf', largestValue)
const top3 = sortedValues.slice(0, 3)
const top3sum = top3.reduce((sum, value) => sum + value, 0)
console.log('Top 3 elves total calories', top3sum)

day2.js

const exampleInput = `
A Y
B X
C Z
`
// A = rock
// B = paper
// C = scissors

// Round 1
// Y = paper    - 2
// X = rock     - 1
// Z = scissors - 3

// Round 2
// X = lose - 0
// Y = draw - 3
// Z = win  - 6

const scoreMap1 = {
  'A Y': 8,
  'B X': 1,
  'C Z': 6,
  'A Z': 3,
  'B Y': 5,
  'C X': 7,
  'A X': 4,
  'B Z': 9,
  'C Y': 2,
}

const scoreMap2 = {
  'A Y': 4,
  'B X': 1,
  'C Z': 7,
  'A Z': 8,
  'B Y': 5,
  'C X': 2,
  'A X': 3,
  'B Z': 9,
  'C Y': 6,
}

const rounds = exampleInput.split('\n').filter(Boolean) // ?
const scores1 = rounds.map((round) => scoreMap1[round]) // ?
const scores2 = rounds.map((round) => scoreMap2[round]) // ?
const totalScore1 = scores1.reduce((acc, score) => acc + score, 0) // ?
const totalScore2 = scores2.reduce((acc, score) => acc + score, 0) // ?
console.log('Total Score - Round 1:', totalScore1)
console.log('Total Score - Round 2:', totalScore2)

Resources:

• https://github.com/rjwut/advent
• https://github.com/caderek/aocrunner