[BOJ] 1205 등수 구하기 (JAVA)

https://www.acmicpc.net/problem/1205

1205번: 등수 구하기

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
	
    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    static StringTokenizer st;
    static int N, ns, P, input, high, same;

    public static void main(String[] args) throws Exception {

        st = new StringTokenizer(br.readLine(), " ");
        N = Integer.parseInt(st.nextToken());
        ns = Integer.parseInt(st.nextToken());
        P = Integer.parseInt(st.nextToken());
        if (N == 0) {
            if (P == 0) System.out.print(-1);
            else if (0 < P) System.out.print(1);
            return;
        }
        st = new StringTokenizer(br.readLine(), " ");
        for (int i = 0; i < N; i++) {
            input = Integer.parseInt(st.nextToken());
            if (ns < input) high++;
            else if (ns == input) same++;
            else break;
        }

        if (high + same < P) System.out.print(high + 1);
        else System.out.print(-1);

    }
	
}