Submission #5016839

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Source Code Expand

import java.util.*;
import java.util.stream.*;

public class Main {
    static Scanner scanner = new Scanner(System.in);

    public static void main(String[]$) {
        int n = scanner.nextInt(), p = scanner.nextInt();
        System.out.println(IntStream.range(0, n).allMatch(i -> scanner.nextInt() == 0) ? p == 0 ? 1L << n : 0 : 1L << n - 1);
    }
}

Submission Info

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