#include<stdio.h>

long b[200000];

int main(int argc, char const *argv[]) {
	long n,k,i,w=0,p=0,min;
	scanf("%ld %ld",&n,&k);
	for(i=0;i<n;i++){
		scanf("%ld",&b[i]);
	}
	for(i=0;i<n;i++){
		if(i+1!=b[i]){
			w++;
			if(i+1==b[b[i]-1]){
				p++;
			}
		}
	}
	p/=2;
	min=(w-2*p)+p;
	if(min<=k && min%2==k%2) printf("YES\n");
	else printf("NO\n");
	return 0;
}