#include<stdio.h>
#include<stdlib.h>

int isprime(long long n){
  long long i;
  if(n<1 || (n!=2 && n%2==0)) return 0;
  if(n==2) return 1;
  for(i=3;i*i<=n;i++){
    if(n%i==0) return 0;
  }
  return 1;
}

int main(void){
  int n,i;
  long long k,ans;
  int *d,*data;
  char *flg;
  int len,next;

  scanf("%d%lld",&n,&k);
  data=(int *)calloc(n+1,sizeof(int));
  flg=(char *)calloc(n+1,sizeof(char));

  for(i=1;i<=n;i++) scanf("%d",&data[i]);

  ans=0;
  for(i=1;i<=n;i++){
    if(flg[i]) continue;
    next=i;
    len=0;
    while(flg[next]==0){
      flg[next]=1;
      len++;
      next=data[i];
    }
    ans+=(long long)len-1;
  }

  if(k<ans || k==ans+1) puts("NO");
  if(n==2 && k%2==1) puts("NO");
  puts("YES");
  free(data);
  free(flg);
  return 0;
}