using c++ .  Consider an unsorted array with N number of elements and given number k value in range from  1 to N; we have to find the kth largest element in the best possible way which take time  complexity O(n) Example: Input: K = 3  A[] = {14, 5, 6, 12, 14, 8, 10, 6, 25}  Output: Kth largest element = 12  Input: K = 5  A[] = {18, 15, 3, 1, 2, 6, 2, 18, 16}  Output: Kth largest element = 3

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