Линейный поиск

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int n = in.nextInt();
        int[] a = new int[n];
        for (int i = 0; i < n; i++) {
            a[i] = in.nextInt();
        }

        int k = in.nextInt();

        for (int i = 0; i < n; i++) {
            if (a[i] == k) {
                System.out.println(i + 1);
                break;
            }
        }

        in.close();
    }
}