The Binary Dark Side
Number Theory
Level
2
Define the binary dual of a base-2 number as one of the same number of digits where all the original 0 digits are 1 and all the original 1 digits are 0. (For example, the binary dual of 10110 is 01001.)
Allowing leading zeros, what's the smallest absolute difference between an 8-digit binary number and its binary dual?
by
Jason Dyer