#645

Set Mismatch

pupil · 490 · lc easy +27 · verified · 44.1% accepted · 5,404 likes · top 26%

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Description

An integer array nums was supposed to contain each value from 1 to n exactly once, but one number was accidentally duplicated, causing another to go missing. Given nums, identify and return [duplicate, missing].

Example 1:

Input: nums = [1,2,2,4]
Output: [2,3]

Example 2:

Input: nums = [1,1]
Output: [1,2]

Code

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