const fs = require('fs');

const inputArray = fs.readFileSync('input.txt').toString().split("\n");

// Part One
let totalCount = 0;

for (i in inputArray) {
  const contents = inputArray[i].split(",");
  const range1 = contents[0].split("-");
  const range2 = contents[1].split("-");
  if (
    (parseInt(range1[0]) >= parseInt(range2[0]) && parseInt(range1[1]) <= parseInt(range2[1]) && parseInt(range1[1]) <= parseInt(range2[1]))
    ||
    (parseInt(range2[0]) >= parseInt(range1[0]) && parseInt(range2[1]) <= parseInt(range1[1]) && parseInt(range2[1]) <= parseInt(range1[1]))
   ) {
    totalCount++
  }
}

console.log(totalCount);


// Part Two

totalCount = 0;

for (i in inputArray) {
  const contents = inputArray[i].split(",");
  const range1 = contents[0].split("-");
  const range2 = contents[1].split("-");
  if (
    (parseInt(range1[1]) >= parseInt(range2[0]) && parseInt(range1[1]) <= parseInt(range2[1]) && parseInt(range1[1]) <= parseInt(range2[1]))
    ||
    (parseInt(range2[1]) >= parseInt(range1[0]) && parseInt(range2[1]) <= parseInt(range1[1]) && parseInt(range2[1]) <= parseInt(range1[1]))
   ) {
    totalCount++
  }
}

console.log(totalCount);

// functions

function getBadge(arrs) {
  let badge = arrs[0];
  for(let i = 1; i < arrs.length; i++){
    badge = intersection(badge, arrs[i]);
  };
  return badge[0];
}

function getIntersection(contents) {
  const length = contents.length;
  const first = contents.substring(0, length / 2).split("");
  const second = contents.substring(length / 2).split("");
  return intersection(first, second)[0];
}

function getPriority(char) {
  const characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
  return characters.indexOf(char) + 1;
}

function intersection(first, second) {
  return first.filter(x => second.includes(x));
};