10.Advance Next Round

There's a game , The rule for promotion to the next round is ：“ If the contestant scores more than 0 And no less than the No K The score of the contestants , Will advance to the next round ！”

There are now known to be n Contestants （n>=k）, And their respective scores , Now you need to calculate how many people will advance to the next round .

Input

The first line of input contains two integers n and k（1<=k<=n<=50）, One space apart .

The second line contains n Integers separated by spaces Ai（0<=Ai<=100）, It's No i The score of the contestants . Among them, for any i Satisfy Ai>=Ai+1.

Output

How many people will be promoted to the next round .

package com;

import java.util.Scanner;

public class Main {
    public static void main(String[] args){
        Scanner s = new Scanner(System.in);
        System.out.println(hasNum(s.nextLine(),s.nextLine()));
    }

    public static int hasNum(String a, String b){
        int count = 0;
        String[] numArr = a.split(" ");
        String[] scoreArr = b.split(" ");
        String score = scoreArr[Integer.valueOf(numArr[1])-1];
        for(int i=0;i<scoreArr.length;i++){
            if(Integer.valueOf(scoreArr[i])>=Integer.valueOf(score) && Integer.valueOf(scoreArr[i])>0){
                count++;
            }
        }
        return count;
    }

}

Such as ：

Input ：
5 1
1 1 1 1 1
Output ：
5