1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
#include<bits/stdc++.h>
using namespace std;


int main(){
    ios_base::sync_with_stdio(0);
    int n, k;
    cin >> n >> k;

    vector<int> scores(n);
    for(int i=0; i<n; i++){
        int score;
        cin >> score;
        scores[i] = score;
    }
    
    sort(scores.begin(), scores.end(), greater<int>());

    int last_winner_iterator = k-1;
    while(last_winner_iterator+1 < n && scores[last_winner_iterator] == scores[last_winner_iterator+1]){
        ++last_winner_iterator;
    }

    cout << last_winner_iterator+1;
}