Fourth Largest Element in the Array

You are given an array consisting of 'N' integers. You have to find the fourth largest element present in the array.

If there is no such number present in the array, then print the minimum value of an integer which is -2147483648.

Follow Up:

Try solving this problem in O(N) time complexity.

Input format:

The first line of input contains the integer 'N' representing the size of the array.

The second line of input contains N space-separated integers representing the array elements.

Output Format:

The only output line contains the fourth-largest element if present, otherwise print -2147483648

Note:

You are not required to explicitly print the output, it has already been taken care of. Just implement the function.

Constraints :

1 <= N < 10^6
-10^6 <= element <= 10^6

Time Limit: 1 sec

Sample Input 1:

5
3 5 1 3 1

Sample Output 1:

1

Explanation Of Sample Input 1:

5 is the largest element, 3 is the second-largest element, again we have a 3 so it's the third largest and 1 is the fourth-largest, hence the answer 1.

Sample Input 2:

4
9 9 9 9

Sample Output 2:

9