[Help Needed] Minimize Subtree Sum With Leaf Reattachment
You are given a tree with nodes, numbered from 1 to n. Each node has an integer value .
You can perform at most k operations. In one operation, you may pick a leaf node and reattach it to any node.
After all operations, define Xi as the sum of values in the subtree rooted at node i . Your goal is to minimize sum of All Xi.
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