codility test

A binary gap within a positive integer N is any maximal sequence of consecutive zeros that is surrounded by ones at both ends in the binary representation of N. For example, number 9 has binary representation 1001 and contains a binary gap of length 2. The number 529 has binary representation 1000010001 and contains two binary gaps: one of length 4 […]

There is a company that has a very creative way of managing its accounts. Every time they want to write down a number, they shuffle its digits in the following way: they alternatively write one digit from the front of the number and one digit from the back, then the second digit from the front