#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    int N; ll K; cin >> N >> K;
    vector<int> D(N);
    rep(i,N) cin >> D[i], D[i]--;

    ll mi = 0;
    vector<int> used(N, 0);
    rep(i,N) if(!used[i]) {
        int v = i;
        do {
            used[v] = true;
            v = D[v];
            mi++;
        } while(v != i);
        mi--;
    }

    cout << (mi <= K && (K - mi) % 2 == 0 ? "YES" : "NO") << endl;
}