my code;-
import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner scn = new Scanner(System.in);
int n = scn.nextInt();
int [] arr =new int [n];
for (int i=0;i<n;i++) {
arr[i]=scn.nextInt();
}
Stack<Integer> stack=new Stack<>();
for (int i=0;i<arr.length;i++) {
while (!stack.isEmpty() && arr[i]>stack.peek()) {
int rv=stack.pop();
System.out.print(arr[i]+" ");
}
stack.push(arr[i]);
}
while(!stack.isEmpty()) {
stack.pop();
System.out.print("-1"+" ");
}
}
}
