Given an unsorted array, arr[] of size N and that contains even number of occurrences for all numbers except two numbers. Find the two numbers in decreasing order which has odd occurrences.
Example 1:
Input:
N = 8
Arr = {4, 2, 4, 5, 2, 3, 3, 1}
Output: {5, 1}
Explaination: 5 and 1 have odd occurrences.
Example 2:
Input:
N = 6
Arr = {1 7 5 5 4 4}
Output: {7, 1}
Explaination: 7 and 1 have odd occurrences.
Your Task:
You don't need to read input or print anything. Your task is to complete the function twoOddNum() which takes the array Arr[] and its size N as input parameters and returns the two numbers in decreasing order which have odd occurrences.
Expected Time Complexity: O(N) Expected Auxiliary Space: O(1)
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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