AOC 2017 day 13 in-browser solutions

adv13-part1.js

(function(input) {
  let firewall = []
  for (let wall of input.split("\n").map(r => r.split(": "))) {
    firewall[parseInt(wall[0])] = parseInt(wall[1])
  }
  
  let severity = 0
  for (let position = 0; position < firewall.length; position++) {
    const scannerTower = firewall[position]
    let scanner
    if (scannerTower !== undefined)
      scanner = (position + 1) % (scannerTower*2-2)
    
    if (scanner === 1)
      severity += position * scannerTower
    console.log(position, scanner, severity)
  }
  return severity
})(document.body.textContent.trim())

adv14-part2.js

(function(input) {
  let firewall = []
  for (let wall of input.split("\n").map(r => r.split(": "))) {
    firewall[parseInt(wall[0])] = parseInt(wall[1])
  }
  
 let test = function (delay) {
  let severity = 0
  for (let position = 0; position < firewall.length; position++) {
    const scannerTower = firewall[position]
    let scanner
    if (scannerTower !== undefined)
      scanner = (position + 1 + delay) % (scannerTower*2-2)
    
    if (scanner === 1) {
      severity += position * scannerTower
      return 1
      console.log("ALARM", position, scanner)
    }
    // console.log(position, scanner, severity)
  }
  return severity
 }
 
 for (let delay = 1; ; delay += 1) {
 	let v = test(delay)
  //console.log(delay, v)
  if (v === 0)
    return delay
 }
})(document.body.textContent.trim())