question Link

void solve()
{
	int n,k;
        cin>>n>>k;
        int a[n];
        vector<pii>v;
        for(int i=0;i<n;i++){
            cin>>a[i];
            v.pb({a[i],i});
        }
        sort(v.begin(),v.end());
        int z=0;
        for(int i=0;i<n-1;i++){
            if(v[i+1].ss!=v[i].ss+1)z++;
        }
        
        if(z>0)z++;
        deb(z);
        if(z>k)cout<<"No"<<endl;
        else cout<<"Yes"<<endl;
}

what's wrong with this code? I don't understand why it is giving the wrong answer.