#include "bits/stdc++.h"
#define REP(i,n,N) for(ll i=(n); i<(N); i++)
#define RREP(i,n,N) for(ll i=(N-1); i>=n; i--)
#define CK(n,a,b) ((a)<=(n)&&(n)<(b))
#define ALL(v) (v).begin(),(v).end()
#define p(s) cout<<(s)<<endl
#define p2(a,b) cout<<(a)<<" "<<(b)<<endl
typedef long long ll;
using namespace std;
const ll inf=1e18;

ll N,K;
ll D[200010];
ll edge[200010];
bool ok[200010];
ll cnt;
int main(){
    cin>>N>>K;
    REP(i,0,N){
        cin>>D[i];
        D[i]--;
        edge[i]=D[i];
    }
    REP(i,0,N){
        ll now=i;
        if(ok[now]) continue;
        while(!ok[now]){
            cnt++;
            ok[now]=true;
            now=edge[now];
        }
        cnt--;
    }
    if(cnt%2==K%2&&cnt<=K){
        p("YES");
    }else{
        p("NO");
    }
    return 0;
}