#include <iostream>
using namespace std;

int main(void){
      long long int N ,K ;
     cin >> N >> K ;
     long long int a[N+1] ;
     bool used[N+1] ;
     
     for(int i=1;i<=N;i++){
          cin >> a[i] ;
          used[i] = false ;
     }
     
     
     int count = 0 ;
     for(int i=1;i<=N;i++){
          
          if(!used[i] && i != a[i]){
               used[i] = true ;
               
               int t = a[i] ;
               int s = a[t] ;
               used[t] = true ;
               
               while(t != i){
                    count++ ;
                    t = s ;
                    s = a[t] ;
                    used[t] = true ;
               }
          }
     }
   
     if(count<=K && (K-count)%2 == 0){
          cout << "YES" << endl ;
     }else{
          cout << "NO" << endl ;
          
     }

}