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

class Result {

public static int activityNotifications(List<Integer> expenditure, int d) {
    int notifications = 0;
    int[] count = new int[201]; // expenditure[i] <= 200

    for (int i = 0; i < d; i++) {
        count[expenditure.get(i)]++;
    }

    for (int i = d; i < expenditure.size(); i++) {
        double median = getMedian(count, d);
        if (expenditure.get(i) >= 2 * median) {
            notifications++;
        }

        // Slide the window
        count[expenditure.get(i - d)]--;
        count[expenditure.get(i)]++;
    }

    return notifications;
}

private static double getMedian(int[] count, int d) {
    int sum = 0;
    if (d % 2 == 1) {
        int mid = d / 2 + 1;
        for (int i = 0; i < count.length; i++) {
            sum += count[i];
            if (sum >= mid) return i;
        }
    } else {
        int mid1 = d / 2;
        int mid2 = mid1 + 1;
        int m1 = -1, m2 = -1;
        for (int i = 0; i < count.length; i++) {
            sum += count[i];
            if (sum >= mid1 && m1 == -1) m1 = i;
            if (sum >= mid2) {
                m2 = i;
                break;
            }
        }
        return (m1 + m2) / 2.0;
    }
    return 0;
}

}

public class Solution { public static void main(String[] args) throws IOException { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

    String[] firstMultipleInput = bufferedReader.readLine().trim().split(" ");
    int n = Integer.parseInt(firstMultipleInput[0]);
    int d = Integer.parseInt(firstMultipleInput[1]);

    List<Integer> expenditure = Arrays.stream(bufferedReader.readLine().trim().split(" "))
        .map(Integer::parseInt)
        .collect(Collectors.toList());

    int result = Result.activityNotifications(expenditure, d);

    bufferedWriter.write(String.valueOf(result));
    bufferedWriter.newLine();

    bufferedReader.close();
    bufferedWriter.close();
}

}