https://www.hackerrank.com/challenges/apple-and-orange/problem

countOranges.js

function countApplesAndOranges(s, t, a, b, apples, oranges) {
  let noOfApples = 0;
  let noOfOranges = 0;
  const applePositions = apples.map(apple => apple + a);
  const orangePositions = oranges.map(orange => orange + b);

  console.log(applePositions, orangePositions);

  for (let i = 0; i < applePositions.length; i++) {
    if (applePositions[i] >= s && applePositions[i] <= t) {
      applePositions[i];
      noOfApples += 1;
    }
  }
  for (let i = 0; i < orangePositions.length; i++) {
    if (orangePositions[i] >= s && orangePositions[i] <= t) {
      noOfOranges += 1;
    }
  }

  console.log(noOfApples);
  console.log(noOfOranges);
}

countApplesAndOranges(7, 11, 5, 15, [-2, 2, 1], [5, -6]);