How to Solve Create Components With Same Value Problem
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Create Components With Same Value
There is an undirected tree with n nodes labeled from 0 to n - 1. You are given a 0-indexed integer array nums of length n where nums[i] represents the value of the ith node. You are also given a 2D i...
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Understanding the Create Components With Same Value Problem
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Problem Statement
There is an undirected tree with n nodes labeled from 0 to n - 1. You are given a 0-indexed integer array nums of length n where nums[i] represents the value of the ith node. You are also given a 2D integer array edges of length n - 1 where edges[i] = [ai, bi] indicates that there is an edge between nodes ai and bi in the tree. You are allowed to delete some edges, splitting the tree into multiple connected components. Let the value of a component be the sum of all nums[i] for which node i is in the component. Return the maximum number of edges you can delete, such that every connected component in the tree has the same value.
Create Components With Same Value
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Examples
nums = [6,2,2,2,6], edges = [[0,1],[1,2],[1,3],[3,4]]2The above figure shows how we can delete the edges [0,1] and [3,4]. The created components are nodes [0], [1,2,3] and [4]. The sum of the values in each component equals 6. It can be proven that no better deletion exists, so the answer is 2.
nums = [2], edges = []0There are no edges to be deleted.
Constraints
1 <= n <= 2 * 104nums.length == n1 <= nums[i] <= 50edges.length == n - 1edges[i].length == 20 <= edges[i][0], edges[i][1] <= n - 1edges represents a valid tree.How Interview Coder Helps with Leetcode Problems
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