#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <sstream>
#include <cmath>
#include <stack>
#include <cctype>
#include <stdio.h>

using namespace std;

int a[200010];

int main() {

	int n = 0;
	long long k=0;
	cin >> n >> k;

	int tmp = 0;
	int ct = 0;
	for (int i = 1; i < n + 1; i++) {
		cin >> tmp;
		a[i] = tmp;
	}
	int t =0;
	for(int i=1;i<=n;i++)while(a[i]!=i){
		t=a[i];
		a[i]=a[t];
		a[t]=t;
		ct++;
	}

		if (ct  % 2 == k % 2  && k>=ct) {
			cout << "YES" << endl;
		} else {
			cout << "NO" << endl;
		}

	return 0;
}