Help me in solving KNGATK problem

help
,
1

My issue

My code

/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
 Scanner sc = new Scanner(System.in);

        int t = sc.nextInt();

        while (t-- > 0 ){

            int n = sc.nextInt();
            int secondColdestDay = Integer.MIN_VALUE;
            int coldestDay = Integer.MIN_VALUE;
            int arr[] = new int[n];

       for (int temp : arr) {
            if (temp < coldestDay) {
                secondColdestDay = coldestDay;
                coldestDay = temp;
            } else if (temp < secondColdestDay && temp != coldestDay) {
                secondColdestDay = temp;
            }
        }

  

        System.out.println(secondColdestDay);
    

        }
    }
}

Problem Link: CodeChef: Practical coding for everyone

2

@elmar1989
U haven’t taken the input of array elements;