Problem of the Day
A new programming or logic puzzle every Mon-Fri

The fifth of May, what a glorious day. Today's problem is all about finding duplicates such as with today's date. For the numbers [10-10,000] print out all the numbers who only use one type of digit (ie: 55 but not 45). Can you come up with a sub linear algorithm to solve this?

Comments:

• Anonymous - 9 years, 7 months ago

  samelist = []
  i = 1
  while i < 9:
      number = i
      while number < 10000:
          samelist.append(number)
          number = i + number*10
      i = i + 1
  
  print samelist
  

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• Anonymous - 9 years, 7 months ago

  Oops, that should be i < 10.

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