2457. Minimum Addition to Make Integer Beautiful

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You are given two positive integers n and target. An integer is considered beautiful if the sum of its digits is less than or equal to target. Return the minimum non-negative integer x such that n + x is beautiful. The input will be generated such that it is always possible to make n beautiful. Example 1: Input: n = 16, target = 6 Output: 4 Explanation: Initially n is 16 and its digit sum is

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solution.cppC++17

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