nextRound.cpp

/*"Contestant who earns a score equal to or greater than the k-th place finisher's score will advance to the next round, as long as the contestant earns a positive score..." — an excerpt from contest rules.

A total of n participants took part in the contest (n = k), and you already know their scores. Calculate how many participants will advance to the next round.

Input
The first line of the input contains two integers n and k (1 = k = n = 50) separated by a single space.

The second line contains n space-separated integers a1, a2, ..., an (0 = ai = 100), where ai is the score earned by the participant who got the i-th place. The given sequence is non-increasing (that is, for all i from 1 to n - 1 the following condition is fulfilled: ai = ai + 1).
input:
8 5
10 9 8 7 7 7 5 5
output:
6
input:
4 2
0 0 0 0
output:
0
*/
#include<iostream>
using namespace std;
int main(){
	int n,k,counter=0;
	cin>>n>>k;
	int arr[n];
	for(int i=0;i<n;i++){
		cin>>arr[i];
	}
	for(int i=0;i<n;i++){
		if(arr[k-1]<=arr[i] && arr[i]>0){
			counter++;
		}
	}
	cout<<counter;
	return 0;
}