Repeating and Missing Number
Intermediate
nums has n values and should contain every number from 1 to n exactly once, but one number appears twice and another is missing. Return [repeated, missing].
Examples
Example 1
Input:
repeating_and_missing([3, 1, 2, 5, 3])
Output:
[3, 4]
3 appears twice and 4 is missing.
Example 2
Input:
repeating_and_missing([1, 1])
Output:
[1, 2]
1 appears twice and 2 is missing.
Constraints
2 <= len(nums) <= 2 * 10**5- Every value is between
1andlen(nums). - Exactly one value repeats and exactly one is missing.
Theory
Go to TheoryKeywords
dsa-sheetarrayshard-arrays
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