OJ Board

I don't suppose this is where I put my questions about UVa 200? Obviously, I'm getting WA. Here's my methodology:

1) Create a reverse-linked graph of known pairings. For example, from the test data given above:

XZY
XGY
XWY
ZXY
ZGW
YWWX
#

'Z' would have a link to 'X', 'Y' would have a link to 'Z ...