Binary String To Decimal Integer Converter

I am trying to write a program that converts a 4-bit string representation of binary into a decimal (base 10) integer. This is what I got so far, but after I type In the 4-bit bina

Solution 1:

It looks like you haven't implemented the loop:

defbinaryToDenary():
    Answer = 0
    Column = 8whilenot Column < 1:
        Bit = int(input("Enter bit value: "))
        Answer = Answer + (Column * Bit)
        Column = Column/2print("The decimal value is: {}".format(Answer))

Solution 2:

You can use built-in methods or you can make your own function like so:

bintodec = lambda arg: sum(int(j) * 2**(len(arg) - i - 1) for i, j inenumerate(arg))

Solution 3:

Try this. This is a direct translation from the diagram. Note that in production code and real libraries, this is not a particularly useful function and is only useful as an examination exercise.

definteger_from_binary_input():
    answer = 0
    column = 8whileTrue:
        bit_chars = raw_input("Enter bit value:")
        assertlen(bit_chars) == 1assert bit_chars in"01"
        bit = int(bit_chars)
        answer = answer + column * bit
        column /= 2if column < 1:
            breakprint"Decimal value is: %d" % answer
    return answer

output = integer_from_binary_input()