SRM241 div1-score250 もう一度考えてみた。

ReportAccess.java

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

//SRM241
public class ReportAccess {

	public String[] whoCanSee(String[] userNames, String[] allowedData,
			String[] reportData) {

		List<String> users = new ArrayList<String>();
		int requires = reportData.length;

		for (int i = 0; i < allowedData.length; i++) {

			String[] splited = allowedData[i].split(" ");
			int count = 0;

			for (String allowed : splited) {
				for (String report : reportData) {
					if (allowed.equals(report)) {
						count++;
					}
				}
			}

			if (count == requires) {
				users.add(userNames[i]);
			}
		}

		Collections.sort(users);
		return users.toArray(new String[users.size()]);
	}
}