output_description: Print `Yes` if you will turn on the air conditioner; print `No` otherwise.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      X
attempt: N, K = map(int, input().split())
  A = sorted(map(int, input().split()))
  start = 0
  end = A[-1]
  while end - start != 0:
      l = (start + end) / 2
      count = 0
      for i in range(N):
          count += (A[i] - 1) // l
      if count > K:
          start = int(l)
      else:
          end = int(l + 1)
  print(int(l) + 1)
  
problem_description: Statement
  
  You will turn on the air conditioner if, and only if, the temperature of the
  room is 30 degrees Celsius or above.
  
  The current temperature of the room is X degrees Celsius. Will you turn on the
  air conditioner?
samples: [{"input": "25", "output": "No\n    \n\n* * *"}, {"input": "30", "output": "Yes"}]