SE_and_CS

 Problem Statement      A sequence of numbers is called a zig-zag sequence if the differences between successive numbers strictly alternate between positive and negative. The first difference

 Problem Statement      The old song declares "Go ahead and hate your neighbor", and the residents of Onetinville have taken those words to heart. Every resident hates his next-door neighbors o

 Problem Statement      Suppose you had an n by n chess board and a super piece called a kingknight. Using only one move the kingknight denoted 'K' below can reach any of the spaces denoted 'X'