Lumimyrsky

var readline = require("readline");
const INPUT_LINES = 2;

// Super Epic Input Tool For Testing :))))
// Fun fact to the moderators: I'm a professional Node.js developer (I have done it as a job and a freelancer, since I was 13!).
// Kinda sad you use such old Node.js version as 12, but suit yourself.

if (process.env.TEST !== "1") {
  let lines = [];
  const r = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    terminal: false,
  });
  r.on("line", (line) => {
    lines.push(line);
    if (lines.length === INPUT_LINES) {
      run(...lines);
      r.close();
    }
  });
} else {
  // This part of the program is used for input management while testing the code :)
  run(
    ...require("fs")
      .readFileSync(`${__filename.replace(".js", ".txt")}`)
      .toString()
      .split("\n")
  );
}

function run(...lines) {
  const route1 = lines[0].split(" ").map((v) => parseInt(v));
  const route2 = lines[1].split(" ").map((v) => parseInt(v));

  const r1Raise = route1.reduce(
    (acc, value, index) => acc + Math.max(0, value - (route1[index - 1] || 0)),
    0
  );
  const r2Raise = route2.reduce(
    (acc, value, index) => acc + Math.max(0, value - (route2[index - 1] || 0)),
    0
  );
  console.log(r1Raise < r2Raise ? "1" : "2");
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED