[백준 Java] 정렬: - 25305번: 커트라인

 

 

import java.io.*;
import java.util.Arrays;
import java.util.StringTokenizer;

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(String.valueOf(arr[N - k]));

        br.close();
        bw.flush();
        bw.close();
    }
}