1
/**
2
 * @param {string} rings
3
 * @return {number}
4
 */
5
var countPoints = function (rings) {
6
  let rods = Array(10).fill("");
7
  for (let i = 0; i < rings.length; i += 2) {
8
    if (!rods[rings[i + 1]].includes(rings[i])) rods[rings[i + 1]] += rings[i];
9
  }
10
  return rods.filter((rod) => rod.length > 2).length;
11
};