Hi,

On the second paragraph of the mission, I think part of the statement is incorrect, it says:

"For example: 5 = 0b101 contains two unities, so the answer is 2."

I think it should be:

"For example: 5 = 0101 contains two unities, so the answer is 2."

Look the conversion for 5 in binary should be 0101 and not 0b101

[]'s Gabriel.