#include<bits/stdc++.h>
using namespace std;

#define int long long

typedef pair<int,int>pint;
typedef vector<int>vint;
typedef vector<pint>vpint;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)
#define each(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)
template<class T,class U>void chmin(T &t,U f){if(t>f)t=f;}
template<class T,class U>void chmax(T &t,U f){if(t<f)t=f;}

int N,K;

int D[222222];
int r[222222];
signed main(){
    scanf("%lld%lld",&N,&K);
    rep(i,N)scanf("%lld",&D[i]),D[i]--;
    rep(i,N)r[D[i]]=i;

    int latte=0;
    bool flag=false;
    rep(i,N){
        if(D[i]==i)continue;
        int t=D[i];
        if(r[i]!=t)flag=true;
        swap(D[i],D[r[i]]);
        swap(r[i],r[t]);
        latte++;
    }
    bool ok=true;
    if(latte>K)ok=false;
    else if(N==2&&(K-latte)%2)ok=false;
    else if(!flag&&K-latte==1)ok=false;
    if(ok)cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
    return 0;
}