Codeforces-SolutionsA/158A Next Round/158A.cpp

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2023-06-07 22:14:28 +08:00
#include <bits/stdc++.h>
using namespace std;
int main()
{
int i, j, n, k, count=0;
cin >> n >> k;
int s[n];
for (i = 0; i < n; i++)
{
cin >> s[i];
}
for(i=0;i<n;i++)
{
if (s[i] > 0 && s[i]>=s[k-1])
{
count++;
}
}
cout << count;
}