240419 올림픽

public static void main(String[] args) throws IOException {
	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	StringTokenizer st = new StringTokenizer(br.readLine());

	int n = Integer.parseInt(st.nextToken());
	int k = Integer.parseInt(st.nextToken());
	int[][] map = new int[n][4];

	int idx = -1;
	int cnt = 1;

	for (int i = 0; i < n; i++) {
		StringTokenizer st1 = new StringTokenizer(br.readLine());
		for(int j=0;j<4;j++) {
			map[i][j] = Integer.parseInt(st1.nextToken());
		}
		if (map[i][0] == k) {
			idx = i;
		}
	}
	int a = map[idx][1];
	int b = map[idx][2];
	int c = map[idx][3];

	for (int i = 0; i < n; i++) {
		if (i == idx)
			continue;
		if (map[i][1] > a || (map[i][1] == a && map[i][2] > b)
				|| (map[i][1] == a && map[i][2] == b && map[i][3] > c)) {
			cnt++;
		}
	}

	System.out.println(cnt);
}

출처:https://www.acmicpc.net/problem/8979