Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | 1x 1x 1x 204x 204x 204x 204x 204x 1x 204x 204x 4981x 849x 165x 684x 204x 1x 2x 2x 2x 202x 202x 2x 1x | const { readFile } = require('../helpers/file')
const { convertStringWithNumbersToArray } = require('../helpers/strings')
const extractWiningCombinaisonAndProposals = (str) => {
let sections = str.split(/[:|]/)
sections.shift()
let numbers = sections[0].match(/\d+/g)
let winningNumbers = sections[1].match(/\d+/g)
return [
convertStringWithNumbersToArray(numbers),
convertStringWithNumbersToArray(winningNumbers),
]
}
const countPoints = (winningNb, proposals) => {
let pts = 0
proposals.forEach((number) => {
if (winningNb.includes(number)) {
if (pts === 0) {
pts++
} else {
pts = 2 * pts
}
}
})
return pts
}
const resolvePuzzle = (input) => {
const data = readFile(input)
let sum = 0
data.forEach((line, index) => {
const [winningNb, proposals] = extractWiningCombinaisonAndProposals(line)
sum += countPoints(winningNb, proposals)
})
return sum
}
module.exports = {
resolvePuzzle,
extractWiningCombinaisonAndProposals,
countPoints,
}
|