Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -
Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1’s in their binary representation and return them as an array.
Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation.
The Hamming distance between two integers is the number of positions at which the corresponding bits are different.
Given two integers x and y, calculate the Hamming distance.
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /tomcat.css.