USACO newbarn
Difference between en2 and en3, changed 206 character(s)
Hello,↵

Can someone explain the solution to USACO newbarn (Problem: http://www.usaco.org/index.php?page=viewproblem2&cpid=817, Solution: ↵
 http://www.usaco.org/current/data/sol_newbarn_platinum_feb18.html)? I don't understand what his variables names mean, like tree[c].top, tid, etc. Can someone explain what all of his variables mean and how each part of his program works, including his centroid decomposition?  Thanks!↵

Edit: OK, if anyone has a centroid decomposition solution that's not the official solution (I can't understand how the checking for the same subtree idea works), can you post it and explain it in depth?↵

-dx24816

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en4 English dx24816 2018-09-11 06:43:08 128
en3 English dx24816 2018-09-11 06:41:25 206
en2 English dx24816 2018-09-08 18:34:58 39
en1 English dx24816 2018-09-08 18:06:41 411 Initial revision (published)