61 lines
1.8 KiB
Java
61 lines
1.8 KiB
Java
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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/**
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* @author 令照辉 [zeekling@163.com]
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* @version 1.0
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* @apiNote
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* @since 2020-03-01
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*/
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public class BrotherWord {
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public static void main(String[] args) throws IOException {
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BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
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String s = null;
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while ((s = br.readLine()) != null) {
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String[] vals = s.split(" ");
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if (vals.length < 4)
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continue;
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int num = Integer.parseInt(vals[0]);
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if (num > 1000)
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continue;
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String key = vals[num + 1];
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int index = Integer.parseInt(vals[num + 2]);
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List<String> list = new ArrayList<String>();
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for (int i = 1; i <= num; i++) {
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if (isBrothStr(vals[i], key))
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list.add(vals[i]);
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}
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Collections.sort(list);
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System.out.println(list.size());
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if (list.size() >= index)
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System.out.println(list.get(index - 1));
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}
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}
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private static boolean isBrothStr(String source, String dest) {
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if (source.equals(dest) || source.length() != dest.length())
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return false;
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for (int i = 'a'; i <= 'z'; i++) {
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char ch = (char) i;
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if (getCharSize(source, ch) != getCharSize(dest, ch))
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return false;
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}
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return true;
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}
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private static int getCharSize(String source, char ch) {
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int count = 0;
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for (int i = 0; i < source.length(); i++)
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if (source.charAt(i) == ch)
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count++;
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return count;
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}
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}
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