export function ordenarPorFrecuencia(nums: number[]): number[] {
  const noRepeated = new Set(nums)
  const reps: Record<number, number> = {}
  noRepeated.forEach(num =>{
    const arr = nums.filter(x => x === num)
    reps[arr[0]] = arr.length
  })
  nums.sort()
  return nums.sort( (a,b) => {
    return reps[b] - reps[a]
  })
}