text: export default function sum_pairs(ints, s) {
    const set = new Set();
    for (let i = 0; i < ints.length; i++) {
      const otherPair = s - ints[i];
      if (set.has(otherPair)) {
        return [otherPair, ints[i]];
      }
      set.add(ints[i]);
    }
  }
  