Reason for error

#1

Can’t understand what and why the wrong output is coming.

#2

@2304ambikagupta_35a5bee93bbf353e benchmark your code with this :

import java.util.*;

public class Main {

    public static void main(String[] args) {

        long[] fib = new long[30];
        fib[1] = 1;
        for (int i = 2; i < 30; i++) {
            fib[i] = fib[i - 1] + fib[i - 2];
        }

        Scanner sc = new Scanner(System.in);

        int testCases = sc.nextInt();
        int k = 1;

        while (testCases-- > 0) {
            int n = sc.nextInt();
            System.out.println("#" + (k++) + " : " + fib[n + 2]);
        }

    }
}
#3

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