Leaders in an array

An element is leader if it is greater than all the elements to its right. The last array element is a leader by default.

 Example:

 Input: {16, 17, 4, 3, 5, 2}
Output: 2, 5, 17

 Concept:

 Scan form right. Keep track of maximum element. If the maximum changes print the element and update the maximum. Time complexity O(n).

 Code:

 import java.util.*;

 public class Solution {

     
    public static void main(String[] args) {
        int[] a = {1,10,4,5,3,2};
        int n = a.length;
        int max = a[n-1];
        
        System.out.print(max+" ");
        for(int i=n-2; i>=0; i--){
            if(a[i] > max){
                System.out.print(a[i]+" ");
                max = a[i];
            }
        }
    
    }
}

 Output:

 
2 3 5 10

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