## Find the repeating and missing numbers

[Question]:Given an unsorted array of size n. Array elements are in the range of 1 to n. One number from set {1, 2, …n} is missing and one number occurs twice in the array. Find these two numbers.Input: arr[] = {3, 1, 3}Output: Missing = 2, Repeating = 3Explanation: In the array, 2 is missing and 3 occurs …