#include<bits/stdc++.h>
using namespace std;
#define ALL(x) x.begin(),x.end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define mod 1000000007
using ll=long long;
const int INF=1000000000;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0};
int dy[]={0,1,0,-1};
// ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}
template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;}

struct IOSetup{
    IOSetup(){
        cin.tie(0);
        ios::sync_with_stdio(0);
        cout<<fixed<<setprecision(12);
    }
} iosetup;

template<typename T1,typename T2>
ostream &operator<<(ostream &os,const pair<T1,T2>&p){
    os<<p.first<<" "<<p.second;
    return os;
}

template<typename T>
ostream &operator<<(ostream &os,const vector<T>&v){
    for(int i=0;i<(int)v.size();i++) os<<v[i]<<(i+1==v.size()?"":" ");
    return os;
}

// 0-indexed parmutation only
vector<vector<int>> cycle_partition(const vector<int> &p){
    int n=p.size();
    vector<vector<int>> ret;
    vector<bool> check(n,false);
    rep(i,n)if(!check[p[i]]){
        vector<int> v;
        int pos=p[i];
        v.push_back(i);
        check[i]=true;
        while(pos!=i){
            v.push_back(pos);
            check[pos]=true;
            pos=p[pos];
        }
        ret.push_back(v);
    }
    return ret;
}

signed main(){
    int n;ll k;cin>>n>>k;
    vector<int> d(n);
    rep(i,n){
        cin>>d[i];d[i]--;
    }
    auto g=cycle_partition(d);
    rep(i,g.size())k-=(int)g[i].size()-1;
    if(k%2==0 and k>=0) cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
    return 0;
}