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Leetcode 767. Reorganize String

Rearrange the characters of a string so that no two adjacent characters are the same, returning any valid permutation or "" if none exists. Key insight: feasibility depends on character frequencies (no letter can occur more than (n+1)/2 times), and it's typically solved with a greedy/priority-queue strategy to place the most frequent remaining letters.

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Amazon

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Mid January, 2025

Amazon

Mid-level

Late August, 2024

Amazon

Intern

Reorganize String (LeetCode 767)

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