How can I ensure that when I shuffle my puzzle I still end up with an even permutation?
- by Mithrax
I'm interested making an implementation of the 14-15 puzzle:
I'm creating an array with the values 0 - 15 in increasing order:
S = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }
Now, what I want to do is shuffle them to create a new instance of the puzzle. However, I know that if I create a board with an "odd permutation" than it is…