function twoSum(numbers: number[], target: number): [number, number] {

  const obj: Record<number, number> = {};

  for(let i = 0; i < numbers.length; i++){
    const rest = target - numbers[i];

    if(obj[rest] !== undefined) return [obj[rest.toString()],i];
   
    obj[numbers[i]] = i;
  }
}

// No modificar: necesario para evaluar el resultado.
export { twoSum };