2384. Largest Palindromic Number

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You are given a string num consisting of digits only. Return the largest palindromic integer (in the form of a string) that can be formed using digits taken from num. It should not contain leading zeroes. Notes: - You do not need to use all the digits of num, but you must use at least one digit. - The digits can be reordered. Example 1: Input: num = "444947137" Output: "7449447" Explanatio

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solution.cppC++17

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