message: Made changes in the first comment as requested
diff: import os
  import sys
  -#check() return maximum price of the USB drive which is less than of equal to our budget
  +#check() return maximum price of the USB drive which is less than or equal to our budget
  #This uses the binary search approach to find the required maximum value
  def check(arr,start,end,n1,max):
  if end==start+1 or end==start:
  