Next Round cf

#include <iostream>
#include <string>
#include <cstring>
using namespace std;

int main() {
    int n,k,r,ans=0;
    cin>>n>>k;
    for (int i=0;i<k;i++){
        cin>>r;
        if (r<=0){
            cout<<ans<<endl;
            return 0;
        }
        ans++;
    }
    int last=r;
    while((ans<n)&& (cin>>r)&&(r==last)){
        ans++;
    }
    cout<<ans<<endl;
    return 0;
}