java解决方法
查找兄弟单词
http://www.nowcoder.com/questionTerminal/03ba8aeeef73400ca7a37a5f3370fe68
import java.util.*; public class Main{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); while (scan.hasNext()) { int size = scan.nextInt(); ArrayList<String> words = new ArrayList<>(); for (int i = 0; i < size; i++) { words.add(scan.next()); } String target = scan.next(); String sortedTarget = getSortedWord(target); int k = scan.nextInt(); ArrayList<String> brothers = new ArrayList<>(); for (String s : words) { if (!s.equals(target) && getSortedWord(s).equals(sortedTarget)) { brothers.add(s); } } System.out.println(brothers.size()); if (brothers.size() >= k) { Collections.sort(brothers); System.out.println(brothers.get(k - 1)); } } } private static String getSortedWord(String s) { char[] arr = s.toCharArray(); Arrays.sort(arr); return new String(arr); } }