"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).
Output
Output the number of participants who advance to the next round.
Sample test(s)
input
8 5
10 9 8 7 7 7 5 5
output
6
input
4 2
0 0 0 0
output
0
Note
In the first example the participant on the 5th place earned 7 points. As the participant on the 6th place also earned 7 points, there are 6 advancers.
In the second example nobody got a positive score.
import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int k=sc.nextInt();
int count=0;
int[] score = new int[60];
for(int i=0;i<n;i++)
score[i]=sc.nextInt();
int max=score[k⑴];
for(int i=0;i<n;i++)
if(score[i]>=max&&score[i]>0)
count++;
System.out.println(count);
}
}
