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hard Solve on LeetCode

Last edited: August 2, 2025

Problem
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Solution
Method 1 – Union-Find with Value Grouping (1)
Intuition
Approach
Code
Complexity

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binary-indexed-tree binary-search bit-manipulation brainteaser counting design disjoint-set divide-and-conquer dynamic-programming enumeration greedy hash-function hash-table heap-priority-queue leetcode math matrix merge-sort number-theory ordered-set prefix-sum rolling-hash segment-tree stack string string-matching todo two-pointers union-find

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