input: Write a function to populate an array with random numbers between 1 and 100. The function should take an integer as input representing the length of the array and return an array containing that many random numbers.
  
  assert populateArray(5)==[67, 93, 42, 78, 54]
  assert populateArray(3)==[21, 35, 99]
  assert populateArray(0)==[]
  assert populateArray(2)==[44, 88]
  assert populateArray(1)==[75]
output: import random
  
  def populateArray(length):
      return [random.randint(1, 100) for _ in range(length)]