#include<bits/stdc++.h>

using namespace std;

typedef long long LL;

struct cww{cww(){
    ios::sync_with_stdio(false);cin.tie(0);
    cout<<fixed;
    cout<<setprecision(10);
}}star;
#define fin "\n"
#define FOR(i,bg,ed) for(int i=(bg);i<(ed);i++)
#define REP(i,n) FOR(i,0,n)

#define fi first
#define se second
#define pb push_back

template <typename T>inline void chmin(T &l,T r){l=min(l,r);}
template <typename T>inline void chmax(T &l,T r){l=max(l,r);}

template <typename T>
istream& operator>>(istream &is,vector<T> &v){
    for(auto &it:v)is>>it;
    return is;
}

int main(){
    LL N,K;
    cin>>N>>K;
    vector<LL> v(N);
    cin>>v;
    vector<int> used(N,0);
    LL f=0;
    REP(i,N)if(!used[i]){
        used[i]=1;
        int sz=1;
        for(int u=v[i]-1;!used[u];u=v[u]-1)
            used[u]=1,sz++;
        if(sz>2)f=1;
        K-=sz-1;
    }
    if(K>=0&&K%2==0)cout<<"YES"<<endl;
    //else if(K>=0&&f)cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
                        

    return 0;
}