Hello,

I was trying to do the problem pushabox (http://usaco.org/index.php?page=viewproblem2&cpid=769) with biconnected components, and I think my biconnected components algorithm is right, but for some reason my code is producing the wrong answer on test cases 5-15. I have commented my code so it is easy to understand my logic. Can somebody help me figure out where my logical error is? Thanks!

Code: https://ideone.com/SU9VU8

-dx24816