On clicking a node in a tree, all the adjacent edges are turned on. Calculate min of clicks such that all the edges are turned on.
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Answer / Nuzaht Be
To find the minimum number of clicks required to turn on all edges in a tree, we can use Depth-First Search (DFS) algorithm with the following approach: 1. Start at any node and click it. 2. For each adjacent edge, if it has not been clicked yet, click it and recursively process its remaining unclicked neighbors. 3. Repeat step 2 until all edges have been clicked. Since a DFS visits every edge once, the minimum number of clicks required to turn on all edges in a tree is equal to the number of edges in the tree.
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