'Odd' Algorithms
Probability
Level
3
Consider a Rubik's Cube.
A move is a 90 Degree turn on one of the faces of the cube.
An algorithm is a sequence of moves.
An identity algorithm is an algorithm which when applied on a particular state of the cube results in the exact same state.
How many identity algorithms are there which consist of an odd number of moves?
by
Agnishom Chattopadhyay