import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long k = sc.nextLong();
		int[] arr = new int[n + 1];
		HashMap<Integer, Integer> map = new HashMap<>();
		for (int i = 1; i <= n; i++) {
		    arr[i] = sc.nextInt();
		    map.put(arr[i], i);
		}
		int count = 0;
		for (int i = 1; i <= n; i++) {
		    int x = map.get(i);
		    if (i == x) {
		        continue;
		    }
		    count++;
		    arr[x] = arr[i];
		    map.put(x, arr[i]);
		}
		if (k >= count && (k - count) % 2 == 0) {
		    System.out.println("YES");
		} else {
		    System.out.println("NO");
		}
  }
}