Find the repeating and the missing
Problem
Given an unsorted array of size n. Array elements are in range from 1 to n. One number from set {1, 2, …n} is missing and one number occurs twice in array. Find these two numbers.
Time Limit: 5
Memory Limit: 256
Source Limit:
Explanation
arr[] = {3, 1, 3} Output: 2, 3 // 2 is missing and 3 occurs twice
