[백준] 11004번 K번째 수 문제! (silver 5

import java.io.*;
import java.util.*;
public class Main{
    public static void main(String[] args) throws IOException{
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(System.out));
        StringTokenizer st=new StringTokenizer(br.readLine());
        int n=Integer.parseInt(st.nextToken());
        int k=Integer.parseInt(st.nextToken());
        int[] arr=new int[n];

        st=new StringTokenizer(br.readLine());
        for(int i=0; i<n; i++){
            arr[i]=Integer.parseInt(st.nextToken());
        }
        Arrays.sort(arr);
        bw.write(arr[k-1]+"");
        bw.flush();
    }

}