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
26
27
28
29
30
#include <bits/stdc++.h>
#define PB push_back
#define ST first
#define ND second
#define _ ios_base::sync_with_stdio(0); cin.tie(0);
//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

using namespace std;

using ll = long long;
using pi = pair<int,int>;
using vi = vector<int>;

int n, k;
vi v;
int main() {_
	cin >> n >> k;
	v.resize(n);
	for(int i = 0; i < n; ++i) cin >> v[i];
	sort(v.rbegin(), v.rend());
	int val = v[k - 1];
	int ans = 0;
	for(int i = 0; i < n; ++i) {
		if(v[i] >= val) {
			ans++;
		}
	}
	cout << ans;
	
}