Submission #1587215

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Source Code Expand

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		ArrayList<Integer> array = new ArrayList<Integer>();
		HashSet<Integer> set = new HashSet<Integer>();
		for (int i = 0; i < a; i++) {
			set.add(sc.nextInt());
		}
		for(int b : set){
			array.add(b);
		}
		Collections.reverse(array);
		System.out.println(array.get(1));
	}
}

Submission Info

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