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Given an array of size n, the goal is to find out the smallest number that is repeated exactly ‘k’ times where k > 0?
And
Examples:

Input : a[] = {2, 1, 3, 1, 2, 2}
k = 3
Output : 2

Input : a[] = {3, 4, 3, 2, 1, 5, 5}
k = 2
Output : 3
Explanation: As 3 is smaller than 5.
So 3 should be printed.