2244. Minimum Rounds to Complete All Tasks

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You are given a 0-indexed integer array tasks, where tasks[i] represents the difficulty level of a task. In each round, you can complete either 2 or 3 tasks of the same difficulty level. Return the minimum rounds required to complete all the tasks, or -1 if it is not possible to complete all the tasks. Example 1: Input: tasks = [2,2,3,3,2,4,4,4,4,4] Output: 4 Explanation: To complete all the

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solution.cppC++17

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