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There is an undirected tree where each vertex is numbered from to, and each contains a data treecleanup.buzz sum of a tree is the sum of all its nodes' data values. If an edge is cut, two smaller trees are formed. The difference between two trees is the absolute value of the difference in their sums. Given a tree, determine which edge to cut so that the resulting trees have a minimal difference.

For those who are stuck, here are hints: 1. Dont think of it as a Tree problem. Approach it as a GRAPH. 2. Use first run of DFS to compute a value (not telling what it is:p) that you think will help you solve the problem.

3. The real breakthrough happens during the second run of treecleanup.buzzted Reading Time: 6 mins. Cut the Tree. Problem. Submissions. Leaderboard. Discussions. Editorial. Topics. This editorial requires unlocking.

If you unlock the editorial, your score will not be counted toward your progress. This repository contains my solutions to easy and medium questions in Hackerrank. Hope that helps. - Hackerrank_solutions/treecleanup.buzz at master haotian-wu /5(K). A single integer which denotes the number of possible subtrees. There are 23 possible sub-trees: the sub-trees {2} and {1,3} are not valid. {2} isn't valid because it has 2 edges connecting to it's complement {1,3} whereas K = 1 in the sample test-case {1,3} isn't valid because, well, it's not a sub-tree.

The nodes aren't treecleanup.buzzted Reading Time: 50 secs. Hackerrank Solutions. Contribute to adamjoyce/hackerrank-solutions development by creating an account on GitHub. My personal (hopefully) cleaner code version of HackerRank Solutions for my own personal references - hackerrank-solutions/Cut the treecleanup.buzz at master WendyYanto/hackerrank-solutions.

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