john pfeiffer
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convert decimal to binary

import math

def get_digit( number ):
  d = number % 2
  return d

def parse_small_number( n ):
  digits = list()
  if n == 2:
    digits.append( '0' )
    digits.append( '1' )
  elif n == 1:
    digits.append( '1' )
  else:
    digits.append( '0' )
  return digits

def bins( n ):
  stack = list()
  while n > 2:
    r = get_digit( n )
    stack.append( str( r ) )
    n = int( n / 2 )
  stack += parse_small_number( n )
  return stack


def run_tests(  ):
  print 'converted?'
  tests = [ (0,'0'), (1,'1'), (2,'10'),
    (3,'11'), (4,'100'),(5,'101'),
    (6,'110'),(10,'1010'),(34,'100010')]

  for t in tests:
    print repr( t ),
    r = bins( t[0] )
    r.reverse()
    print repr( r )


run_tests()
print 'done'

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Published

Sep 24, 2013

Category

python

~84 words

Tags

  • binary 7
  • convert 7
  • decimal 4
  • python 180
  • to 63