Iteration #1

The convert_binary function takes a number in base 2 (binary), b, and returns the decimal representation of the number. Refer to the doctests for examples how to use the convert_decimal function.

def convert_binary(b):
	""" Convert a binary number to decimal
           
           >>> convert_binary(10110)
           22
           >>> convert_binary(111)
           7
           >>> convert_binary(0)
           0
           >>> convert_binary(1000)
           8
           """
	______________________ , factor = ______________________ , 1
	while b:
		b, last = b // 10, b % 10
		______________________ = ____________________________________________
		factor = ______________________
	return ______________________

def convert_binary(b):
	total, factor = 0, 1
	while b:
		b, last = b // 10, b % 10
		total += last * factor
		factor = factor * 2
	return total

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