#include<stdio.h>

int main(void){
	unsigned long long int n,k,d[262144],i,m,c=0;
	scanf("%llu%llu",&n,&k);
	for(i = 1;i <= n;i++){
		scanf("%llu",&m);d[i] = m;
	}
	for(i = 1;i <= n;i++){
		while(i != d[i]){m = d[i];d[i] = d[m];d[m] = m;c++;}
	}
	if(k >= c && (k-c)%2 == 0){printf("YES\n");}else{printf("NO\n");}
	return 0;
}